Rolls-Royce Archives
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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).
Graph charting the performance and timekeeping accuracy of Smith Electric Clocks over approximately 75 days.

Identifier  ExFiles\Box 164\1\  img257
Date  6th January 1941 guessed
  
MINUTES
+8
+6
+4
+2
0
-2
-4
-6
-8
-10
SMITH ELECTRIC CLOCKS
ON 98 SY
LONG RUNNING
BATT CHARGE
BATT LOW
CAR STANDING
IN SHOP FOR EXAMINATION
SMALL MILEAGE. BATT VOLTS NOT ABOVE 12 V.{VIENNA}
ANY LONG PERIOD.
DAYS
0 10 20 30 40 50 60 70
A.T
A.T.4
A.T.1
  
  


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