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).
Table comparing Dunlop tyre pressures and maximum loads from various lists and a letter.
| Identifier | ExFiles\Box 39\2\ Scan149 | |
| Date | 28th June 1922 | |
| 28-6-22 DUNLOP TYRE PRESSURES. SECTION OF TYRE. | DUNLOP LIST DATED OCT. 1/21. | DUNLOP NEW LIST (UNDATED). | DUNLOP LETTER MAY 16/22. | B.E. | Cord B.E. | Cord S.S. | B.E. | Cord S.S. | B.E. | Cord B.E. | Cord S.S. 120 m/m or 4½" | lbs. 1100 @ 75. | lbs. 1200 @ 75. | lbs. 1200 @ 70. | lbs. 1100 @ 75. | lbs. 1200 @ 70. | - | - | lbs. 1288 @ 60. 135 m/m or 5" | 1500 @ 85. | 1700 @ 80. | 1700 @ 80. | 1500 @ 80. | 1700 @ 80. | - | - | 1624 @ 60. The loads given are maximum loads per tyre for the pressure shewn. | ||