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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).
Inspection report for an O.S.F. spring from Chassis 93 NK, detailing cracks and breaks in the leaves.

Identifier  ExFiles\Box 71\4\  scan0253
Date  17th June 1925
  
X8940
Chateauroux. 17.6.25.
Chassis 93 NK.
O.S.F. spring (Firths) to Drwg. F.{Mr Friese} 71975 - 1150 lbs.

Leaves. | Condition. | Where cracked, or broken. | Approx. length of crack.
1. | Broken. | 2 1/4" rear of centre bolt.
2. | " | 1 1/8" front of centre bolt.
3. | " | - do -
4. | " | - do -
5. | " | - do -
6. | Cracked. | Centre - outside. Centre to bolt hole.
7. | " | 1 1/8" rear of centre bolt - outside. | 1"
| | 1/4" front of centre bolt - outside. | 1"
8. | " | 1 3/16" rear of centre bolt - outside. | 1"
9. | " | 1/2" rear of centre bolt - inside. | 3/4"
| | 1 1/8" front of centre bolt - inside. | 3/4"
10. | " | 1 3/8" front of centre bolt - outside. | 3/4"
11. | Appears O.K.

Diagram:
Rear. Outside. o Front. Inside.

Mileage of No. 1 leaf - 10,311.
Remaining leaves - 10,811.

[Signature]
  
  


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