Correspondence regarding the inspection, rating, supply and testing of watches, chronometers and clocks by the Royal Greenwich Observatory Chronometer Section, including the following items:

Booklet on 'Balance and Spring' by R.A. Fell.

Correspondence concerning quartz crystal chronometers supplied by the Seikosha Watch Company, Tokyo, Japan, 1963.

Correspondence regarding the repair of mine clocks, 1962-1963.

Correspondence regarding the historical chronometer belonging to Vice Admiral B.C. Watson, 1962.

Notes prepared by P.S. Laurie in 1961 concerning 'The Kendal timekeeper' that was sent to Botany Bay on HMS 'Sirius' in 1787.

Correspondence with J.B. Williamson, Isle of Wight, concerning a ship's chronometer by John Poole, 1958.

Correspondence regarding selected chronometers, watches and almanacs on the Navy stand at the Radio Exhibition of 1956.

Correspondence regarding the time ball drop from Deal Tower, 1956.

Preliminary press statement regarding a visit to Russia to see clock and watch factories, 1956.

Correspondence with H. Quill concerning the 'Five Centuries of British Timekeeping Exhibition', 1955.

Correspondence regarding the loan of eight Hamilton deck watches for the Trans-Atlantic Expedition, 1955.

Correspondence concerning the loan of chronometer watches for use at the total eclipse of the sun on 20 June 1955, and also in southern Sweden on 30 June 1954.

Form H1120 on the supply, use and treatment of chronometers, hack watches and pocket watches, 1955.

Letters from D.W. Barret concerning the Kew Certificate, 1954.

Correspondence and papers on the increases in staff to deal with Air Ministry work, 1947-1952.

Correspondence regarding the Hamilton chronometer, 1954.

Booklet titled the 'Practical method of assessing the quality of watches', 1953.