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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).
Letter from Joseph Lucas Limited regarding an experimental order for special twin filament replacement bulbs for P.100 Projectors.

Identifier  ExFiles\Box 61a\2\  scan0040
Date  27th March 1929
  
X4477

CONTRACTORS TO THE ADMIRALTY, WAR OFFICE, AIR MINISTRY, INDIA OFFICE, G.P.O. AND LEADING RAILWAYS. Also A.B.C. 5th & 6th EDITS & BENTLEYS.

"KING OF THE ROAD" LAMPS, HORNS,
"CYCLEALITIES", "MOTOR-CYCLEALITIES",
"MOTORALITIES", MAGNETOS, BATTERIES,
"ELECTRIC LIGHTING & STARTING SYSTEMS.

JOSEPH LUCAS LIMITED
GREAT KING STREET
BIRMINGHAM

TELEPHONES: NORTHERN 2201 (10 LINES)
TELEGRAMS & CABLES: "LUCAS, BIRMINGHAM."

SERVICE DEPÔTS
BELFAST, 3-5, CALVIN ST.{Capt. P. R. Strong}
BIRMINGHAM, GREAT HAMPTON ST.{Capt. P. R. Strong}
BRISTOL, 345, BATH ROAD.
CARDIFF, PENARTH ROAD.
COVENTRY, PRIORY STREET.
DUBLIN, TAYLOR BROS
GLASGOW, 227-229, ST.GEORGE'S RD.
LEEDS, 64, ROSEVILLE ROAD.
LONDON, COBBREC'H RD.
LONDON, AYTON VALE, W.2.
LONDON, 759, HIGH ROAD,
LONDON, LEYTON, E.10.
LONDON, 185, MERTON RD. WANDSWORTH, S.W.18.
MANCHESTER, TALBOT RD, STRETFORD.
NEWCASTLE-ON-TYNE, 64-66, ST.{Capt. P. R. Strong} MARY'S PLACE.

WHOLESALE DEPÔTS
BELFAST, 3-5, CALVIN STREET.
BRISTOL, 345, BATH ROAD.
CARDIFF, PENARTH ROAD.
DUBLIN, TAYLOR BROS.
41, MIDDLE ABBEY STREET.
GLASGOW, 227-229, ST GEORGE'S ROAD.
LEEDS, 64, ROSEVILLE ROAD.
LONDON, 224, SHAFTESBURY AVENUE, W.C.2.
MANCHESTER, 291-293, DEANSGATE.
NEWCASTLE-ON-TYNE, 64-66, ST MARY'S PLACE.

27th. March 1929.

WHEN REPLYING PLEASE REFER TO
RLN/1.

Messrs. Rolls-Royce Ltd.
Derby.

Dear Sirs,

For The Attention of Mr. Clark,
Experimental Dept.

We understand from Messrs. The General Electric Co. that you have been ordering some special twin filament replacement bulbs for use in our P.100. Projectors.

Messrs. G.E.C. have advised us on the telephone this afternoon that they have informed you that this is a special bulb made to our specifications, and as we have been experiencing a little trouble with the filaments breaking away from their supports, they had no stock with which to complete your order. We have recently obtained a further batch of bulbs in which the above weakness is alleged to be eradicated.

We have not had an opportunity of testing these for ourselves, but in view of the fact that you require the bulbs urgently for the week end, we are sending you four, which is all we have available, and we trust that they will get you over your difficulty. We shall be interested to know how they perform in due course.

Yours faithfully,
  
  


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