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).
Order for two rev counters reading up to 5000 R.P.M.
| Identifier | ExFiles\Box 165\4\ img286 | |
| Date | 25th February 1935 | |
| r6051 Roy.{Sir Henry Royce} From Hs{Lord Ernest Hives - Chair}/Wst. Hs{Lord Ernest Hives - Chair}/Wst.7/MA.25.2.35. REV COUNTERS. Please order for us from the A.T.Co., two Rev counters reading up to 5000 R.P.M. and to be driven at half engine speed, i.e. should read 5000 when driven at 2500 R.P.M. Order No.54317. Hs{Lord Ernest Hives - Chair}/Wst. | ||