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 spare parts with their approximate costs and reasons for omission from a standard kit.
| Identifier | ExFiles\Box 20\8\ Scan049 | |
| Date | 3rd July 1923 guessed | |
| Oy1-W-62E23 -3- SPARES Part Description Approx. Cost Reason for omission E-2218 Valve spring cotter $.04 Unnecessary, never fail E-2824 " bottom washer .15 " E-3361 " top " .10 " E-5193 Valve springs (7) 1.33 " (Reduced to 3 now in Derby list) E-13584 Valve 2.60 " E-17364 Holder .27 Not used E-5522 Contact tip 2.10 (Not used. Was almost never in kit when needed. E-327 Platinum point 2.10 " G-4170 Carbon contact .34 Unnecessary, never fail G-5547 Gen. brush (set) .36 (Taken care of by Bijur Service stations E-17935 Contact screw .10 Not used G-3024 Taper pins (3) .05 " Wood mallet .50 (On rare occasions where used outside, garage hammer is generally used, because difficult to find space for mallet. (Block of wood resting on floor recommended for use in garage. E-6333 Clip nut } (4) .40 Not used E-6336 " bolt } E-12058) Clip } (4) .60 Not used E-12059) Packing } F-8070 Com. brush 4 2.20 (Never wear out. Taken care of by Bijur E-17362 Adj. screw tappets .40 Not used Copper asbestos washers (6) .03 Not used Washers (12) .16 (Can be purchased any store, and are always lost Split pins (24) .08 " " " " " Spring washers (12) .05 " " " " " Gage stick .15 " " " " " $14.11 | ||