Rolls-Royce Archives
From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
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Letter from the India Tyre & Rubber Company detailing the weights of various tyre tubes and recommended rim sizes.22th Mar 1935Box 30 \ 5  Scan051
Letter to The India Tyre & Rubber Co. regarding testing 4-ply tyres and light alloy wheels on a Bentley to save weight.25th Mar 1935Box 30 \ 5  Scan052
Letter from a tyre company discussing the disadvantages of a 4-ply versus a 6-ply tyre cover for a Bentley.26th Mar 1935Box 30 \ 5  Scan053
Letter from India Tyre & Rubber Co. regarding a new 25 HP R-R car and using their tyres on a Bentley for the Ulster T.T. race.28th Mar 1935Box 30 \ 5  Scan054
Letter to the Earl of Rothes regarding Mr. Thorne's troubles and a Bentley's participation in road racing.30th Mar 1935Box 30 \ 5  Scan055
Letter from India Tyre & Rubber Company regarding tread depth on 4 ply and 6 ply Aero Cushion tyres.1st Apr 1935Box 30 \ 5  Scan056
Letter from the India Tyre & Rubber Company Ltd. regarding Bentley and road racing information.2nd Apr 1935Box 30 \ 5  Scan057
Letter to the India Tyre & Rubber Co. regarding the trial of their 4-ply tyres on an experimental car.8th Apr 1935Box 30 \ 5  Scan058
Letter to The Earl of Rothes enclosing a copy of correspondence addressed to Mr. Worth.8th Apr 1935Box 30 \ 5  Scan059
The order of Bentley wheels from Dunlop and tyres from the India Tyre Co.8th Apr 1935Box 30 \ 5  Scan060
Letter from India Tyre & Rubber Co. regarding the tread pattern of a 4 ply 6.00/16 tyre being sent for testing.9th Apr 1935Box 30 \ 5  Scan061
Design drawing for a 6.00-16 India Aero Cushion tyre tread and mould.18th Oct 1933Box 30 \ 5  Scan062
Letter from a tyre company regarding the supply of 4-ply 6.00-16 tyres and their performance.9th Apr 1935Box 30 \ 5  Scan063
Advertisement for the India Tyres comprehensive range with a handwritten annotation.9th Apr 1935Box 30 \ 5  Scan064
Conditions of sale and contact list for India motor car tyres.10th Apr 1935Box 30 \ 5  Scan065
Letter from India Tyre & Rubber Company regarding the supply of 4 ply 6.00/16 covers for testing.10th Apr 1935Box 30 \ 5  Scan066
Letter to The India Tyre & Rubber Co.Ltd regarding the direct shipment of tyres and tubes.11th Apr 1935Box 30 \ 5  Scan067
Letter from India Tyre & Rubber Company Ltd. to arrange a meeting with W.A. Robotham and Mr. Royce.11th Apr 1935Box 30 \ 5  Scan068
Letter to the Earl of Rothes at The India Tyre & Rubber Co. Ltd. to arrange a visit.12th Apr 1935Box 30 \ 5  Scan069
Letter from India Tyre & Rubber Company regarding a new tyre type for trial on Bentley cars.13th Apr 1935Box 30 \ 5  Scan070
Tackling tyre noise, arranging comparative tests for India tyres, and demonstrating issues with Dunlop tyres.15th Apr 1935Box 30 \ 5  Scan071
Letter from India Tyre & Rubber Company confirming the dispatch date for 6.00/16 tyres.16th Apr 1935Box 30 \ 5  Scan072
Requesting payment authorisation for an invoice from the India Tyre & Rubber Co. Ltd.18th Apr 1935Box 30 \ 5  Scan073
Official order be placed for tyres and tubes from the India Tyre & Rubber Co. Ltd.26th Apr 1935Box 30 \ 5  Scan074
Letter from the India Tyre & Rubber Company discussing the substitution of a new tyre design for Bentley vehicles.25th Apr 1935Box 30 \ 5  Scan075
The second page of a letter to W.A. Robotham from Rothes, discussing a potential engineering candidate.25th Apr 1935Box 30 \ 5  Scan076
Letter to The India Tyre & Rubber Co. Ltd. about the 'India Super Tyre', its testing, and the need to widen the tread to compete with Dunlop '90'.3rd May 1935Box 30 \ 5  Scan077
Letter from India Tyre & Rubber Company regarding the change to India Super Tyres for Bentley vehicles.7th May 1935Box 30 \ 5  Scan078
Letter from India Tyre & Rubber Co. Ltd. regarding the supply of tyres for Bentley.11th May 1935Box 30 \ 5  Scan079
Letter from India Tyre & Rubber Company, Ltd. requesting test results for a new pattern of India Tyres.14th May 1935Box 30 \ 5  Scan080
Letter to The India Tyre & Rubber Co. Ltd. regarding the testing of 16' tyres.23th May 1935Box 30 \ 5  Scan081
Letter from India Tyre & Rubber Co. Ltd. requesting results from tyre tests.29th May 1935Box 30 \ 5  Scan082
Letter to The India Tyre & Rubber Co. Ltd. regarding a car and tyre test on the Continent.30th May 1935Box 30 \ 5  Scan083
Letter from the India Tyre & Rubber Company Ltd. arranging a meeting and lunch.1st Jun 1935Box 30 \ 5  Scan084
Letter to The Earl of Rothes at The India Tyre & Rubber Co. Ltd. apologising for being unable to meet.3rd Jun 1935Box 30 \ 5  Scan085
Letter from the India Tyre & Rubber Company regarding Aero Cushion tyres and an enclosed letter for Mr. Royce.1st Jul 1935Box 30 \ 5  Scan086
Letter from India Tyre & Rubber Co. Ltd. regarding the supply of new 'Super Tyre' for Bentley Chassis.28th Jun 1935Box 30 \ 5  Scan087
Letter to The Earl of Rothes regarding tyre testing, silence improvement and coachwork.9th Jul 1935Box 30 \ 5  Scan088
Letter arranging a meeting in Derby to discuss Aero Cushion Tyres.9th Jul 1935Box 30 \ 5  Scan089
Letter from the India Tyre & Rubber Company regarding testing of Aero Cushion tyres and wheels.10th Jul 1935Box 30 \ 5  Scan090
Test report on India Aero Cushion Tyres 6.00 x 16.10th Jul 1935Box 30 \ 5  Scan091
Letter to the Earl of Rothes regarding Aero Cushion Tyres.12th Jul 1935Box 30 \ 5  Scan092
Price list for India Tyres and Tubes from 1935.24th Jun 1935Box 30 \ 5  Scan093
Letter from India Tyre & Rubber Company Ltd. to W.A. Robotham to arrange a meeting.29th Jul 1935Box 30 \ 5  Scan094
Letter from the Experimental Department to the Earl of Rothes to arrange a meeting.30th Jul 1935Box 30 \ 5  Scan095
Letter from the India Tyre & Rubber Company Ltd. arranging a meeting in Derby.31th Jul 1935Box 30 \ 5  Scan096
The purchase of two sets of tyres.8th Aug 1935Box 30 \ 5  Scan097
Letter from India Tyre & Rubber Co. Ltd. concerning the supply and testing of experimental tyres for a Bentley.8th Aug 1935Box 30 \ 5  Scan098
Page 2 of a letter to W.A. Robotham asking for an opinion on a trip and mileage information for tyre covers.8th Aug 1935Box 30 \ 5  Scan099
Letter from India Tyre & Rubber Company Ltd regarding tyre performance on a Bentley and preparations for the T.T. race.26th Aug 1935Box 30 \ 5  Scan100
Letter to W.A. Robotham regarding tyre specifications and competition with Dunlop.26th Aug 1935Box 30 \ 5  Scan101
Short, incomplete letter to The Earl of Rothes regarding comments on tyres.3rd Sep 1935Box 30 \ 5  Scan102
Letter from the India Tyre & Rubber Company Ltd. acknowledging receipt of a letter and its enclosure.4th Sep 1935Box 30 \ 5  Scan103
Letter to the India Tyre & Rubber Co. Ltd. regarding tyre performance in the T.T. race, a personnel matter, and a road trip.10th Sep 1935Box 30 \ 5  Scan104
Letter discussing the difficulty of shooting driven Hungarian partridges compared to those in England.10th Sep 1935Box 30 \ 5  Scan105
Letter to Mr. J.B. Dixon expressing reservations about his potential employment due to lack of experience.11th Sep 1935Box 30 \ 5  Scan106
Request to supply four India Speed Special Covers, size 5 x 18, for a personal car.12th Sep 1935Box 30 \ 5  Scan107
Letter to The Earl of Rothes at India Tyre & Rubber Co. regarding the distribution of their tyres in Paris.13th Sep 1935Box 30 \ 5  Scan108
Letter from India Tyre & Rubber Co. correcting tyre measurement data for a Bentley.18th Sep 1935Box 30 \ 5  Scan109
Measurement of tyre wear on E.R. Hall's Bentley after the 1935 Ulster T.T. race.17th Sep 1935Box 30 \ 5  Scan110
Letter from India Tyre & Rubber Company congratulating an individual on Bentley's achievements in Ulster.17th Sep 1935Box 30 \ 5  Scan111
Letter from India Tyre & Rubber Company Ltd. to Mr. W.A. Robotham.17th Sep 1935Box 30 \ 5  Scan112
Page two of a letter discussing arrangements with distributors and a Mr. Sleator.18th Sep 1935Box 30 \ 5  Scan113
Letter from India Tyre & Rubber Company regarding tyre wear measurements on a Bentley after the T.T. Race.18th Sep 1935Box 30 \ 5  Scan114
Cross-sectional diagrams of two different tire sizes.19th Sep 1935Box 30 \ 5  Scan115
Test report on 6' x 16' 6-ply India Aero Cushion Tyres fitted to a Bentley.19th Sep 1935Box 30 \ 5  Scan116
Urgent request to order seven 7 x 18' tyres from the India Tyre company.20th Sep 1935Box 30 \ 5  Scan117
Letter to The India Tyre & Rubber Co. regarding tyre performance analysis and ordering further tyres for testing.20th Sep 1935Box 30 \ 5  Scan118
Letter to the India Tyre & Rubber Co. Ltd. concerning issues with tyre noise and ordering replacements.20th Sep 1935Box 30 \ 5  Scan119
Letter from India Tyre & Rubber Company enquiring about the performance of trial tyres and an opinion on a new all-steel body.20th Sep 1935Box 30 \ 5  Scan120
Letter from India Tyre & Rubber Company discussing tyre performance, wear, and sizing for the T.T. Race.20th Sep 1935Box 30 \ 5  Scan121
Letter from India Tyre & Rubber Company regarding the effect of smaller tyres on unsprung weight and performance.20th Sep 1935Box 30 \ 5  Scan122
Letter discussing the results of vehicle body testing on the Continent and plans for further tests and tyre trials.21th Sep 1935Box 30 \ 5  Scan123
Letter from India Tyre & Rubber Co. regarding the despatch, testing, and design modifications of Super Tyres.21th Sep 1935Box 30 \ 5  Scan124
Page 2 of a letter from India Tyre & Rubber Company Limited regarding tyre noise.21th Sep 1935Box 30 \ 5  Scan125
Letter from India Tyre & Rubber Company Ltd. concerning the supply of six tyres for testing on a new chassis.21th Sep 1935Box 30 \ 5  Scan126
Letter concerning the supply of tyres as original equipment for a new chassis.21th Sep 1935Box 30 \ 5  Scan127
Letter from India Tyre & Rubber Company Ltd. confirming the dispatch of tyres for experimental purposes.23th Sep 1935Box 30 \ 5  Scan128
Letter to The Earl of Rothes at India Tyre & Rubber Co. regarding the testing of 7 x 18' tyres.26th Sep 1935Box 30 \ 5  Scan129
Letter discussing the choice of tyre sizes, gear ratios, and ride experience with different tyres.26th Sep 1935Box 30 \ 5  Scan130
Letter from India Tyre & Rubber Company Ltd. concerning the performance of 7.00-18 tyres and a proposed meeting at the Motor Show.27th Sep 1935Box 30 \ 5  Scan131
Letter to W.A. Robotham discussing fitting India tyres to a chassis for the Olympia Motor Show.27th Sep 1935Box 30 \ 5  Scan132
Letter discussing the choice between India and Dunlop tyres for a new chassis to be displayed at the Motor Show.1st Oct 1935Box 30 \ 5  Scan133
Tyre noise issues on the Spectre model, comparing Dunlop with India tyres.1st Oct 1935Box 30 \ 5  Scan134
Letter from India Tyre & Rubber Company discussing a lunch meeting and the potential fitment of their tyres to the 'Phantom 111' as Original Equipment.2nd Oct 1935Box 30 \ 5  Scan135
Internal despatch request for wheels, tyres and tubes to be sent to two addresses in France.3rd Oct 1935Box 30 \ 5  Scan136
Unacceptable noise from Dunlop tyres on the Phantom III car and plans to test alternatives.4th Oct 1935Box 30 \ 5  Scan137
Fitting India tyres to five of nine Phantom III cars for the Olympia exhibition.7th Oct 1935Box 30 \ 5  Scan138
Letter from a tyre manufacturer regarding tests and improvements to reduce tyre noise.7th Oct 1935Box 30 \ 5  Scan139
Page 2 of a letter from India Tyre & Rubber Company Ltd. regarding tyre noise testing.7th Oct 1935Box 30 \ 5  Scan140
Noise measurement tests for 'Speed Special' tyres at different speeds and inflation pressures.23th Oct 1935Box 30 \ 5  Scan141
Order for tyres and tubes for a Cadillac Chassis.23th Oct 1935Box 30 \ 5  Scan142
The effect of 'Super' India Tyres on engine revs and speedometer calibration for Bentley Chassis B-1-CW.30th Oct 1935Box 30 \ 5  Scan143
Invoice from India Tyre & Rubber Co. Ltd. for tyres supplied for experimental purposes, seeking authorisation for payment.1st Nov 1935Box 30 \ 5  Scan144
Request to place an official order for six 7.00 x 18 India New Super Covers.1st Nov 1935Box 30 \ 5  Scan145
Letter from a tyre company enquiring about progress on the issue of tyre silence.6th Nov 1935Box 30 \ 5  Scan146
Letter to the Earl of Rothes at The India Tyre & Rubber Co. Ltd. discussing findings on tyre noise.7th Oct 1935Box 30 \ 5  Scan147
Investigation into objectionable tyre noise on the Phantom III car, comparing it to the Phantom II and testing various tyre makes.7th Oct 1935Box 30 \ 5  Scan148
Tyre noise, its relationship with wear, and comparison tests on different wheels.7th Oct 1935Box 30 \ 5  Scan149
Summary of test results showing factors affecting tyre noise with comparative noise percentages.7th Oct 1935Box 30 \ 5  Scan150


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