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Circular of the Bureau of Standards. No. 51. Measurement of Time and Tests of Timepieces
|Catalogue no: 1485|
|Dewey No:||Subject(s): Courtenay Ilbert Archive|
|Total pages: 39||Illustrations: 1||Language(s): English||Publication date: December 1st, 1914|
|Editor:||Publisher: Dept. of Commerce, U.S.A.|
|Dimensions: 255mm x 180mm||Condition: Good|
|Related titles:||Related library records:
Pamphlet giving details of the tests for precision watches in the U.S.A. Contents as follows;
The Methods of Test of Watches; The Use and Value of Tests of Watches; Definitions of Correction to a Watch, Rate, Etc.; By Whom Watches may be Submitted for Test; Sizes of Watch Movements; The Use and Care of a Watch; The Comparisons of a Watch with some Reliable Source of Standard Time; Standard Time and the Standard Time Sections; Regulations Governing the Testing of Watches; Shipping directions, remittances, etc.; Schedule of fees.
Illustration shows the precision mean time clock (Riefler type) used as a standard in the testing of timepieces at the Bureau of Standards.
Front cover signed in ink by Paul Ditisheim and stamped on the inside front cover, 20. Avr. 1915.
|Room location: Library Extension||Cabinet: F||Shelf: 5|
|Search terms: Chronometers, Precision Watches|
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