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).
List of rims and tyres sent from the United States for experimental work.
| Identifier | ExFiles\Box 42\5\ Scan005 | |
| Date | 30th January 1920 | |
| X.3895. Jan. 30th 1920. X.3893. PARTS SENT FROM THE STATES ON JAN. 30TH. '20 WHICH EXPERIMENTAL WORK IS REQUIRED. X.3894. (1) Demountable Rims. Shipped. Cedric Dec. 20. (a) Firestone Rims. 6 - 32 x 4 1/2 for wire wheels for 33 x 5 tyres. Cedric Dec. 20. 6 - 34 x 4 1/2 " " " " 35 x 5 tyres. Cedric Dec. 20. (b) Stanwell Rims. 5 - 32 x 4 1/2 for wire wheels for 33 x 5 tyres. (2) Tyres. (straight side. X.3895) Belgic Jan. 10. (a) Goodrich - shipped since Dec. 20. (invoiced.) 6 - 33 x 5 straight side cords with inner tube Belgic Jan. 10. (b) Kelly-Springfield.- invoiced, (shipped since Dec.20.) 6 - ss{S. Smith} x 5 straight side cords with inner tubes Cedric Dec. 20. (c) Goodyear. X.3926. 5 - 33 x 5 straigjt side cords with ijner tube Cedric Dec. 20. (d) United States Royal Cord. 6 - 33 x 5 straight side cords with inner tube 6 - 34 x 4 1/2 " " " " " " Belgic Jan. 10. (e) Firestone - invoiced. 6 - 33 x 5 str. side cords with inner tubes 0912 D 5149 918 A/S1 (L 501) Y 266 M M | ||