Item 807 - Notes by Henry Leonard Nelthropp on clocks and chronometers of John Harrison

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Reference code

Add. MS a/807

Title

Notes by Henry Leonard Nelthropp on clocks and chronometers of John Harrison

Date(s)

  • [1891 or later] (Creation)

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Item

Extent and medium

3 single sheets.

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Name of creator

Nelthropp, Henry Leonard (1820-1901), clergyman
(1820-1901)

Biographical history

Repository

Trinity College Library, Cambridge

Archival history

Immediate source of acquisition or transfer

The book in which these notes were found was bequeathed to Trinity by Nelthropp in 1901, and is dated 'H. L. N. Octr 26 1881' on the inside cover.

Content and structure area

Scope and content

Notes that at the 'Shandon Sale... on Friday May 18th 1877' [the sale of the goods of Robert Napier of West Shandon], Lot 2298 was 'a chronometer in silver case, by J. Harrison, 1770, being the duplicate of one for which the inventor received a rewards of £20,000 from the Board of Longitude...'; record of Harrison's chronometers in the 'Catalogue of Naval Exhib[itio]n 1891 page 380'; detailed quoted description of 'No 3. Instrument bought by Clockmakers Co. The duplicate of No. 1. Made actually by Harrison'.

Rough calculations on verso of final sheet.

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      Notes originally found between pp. 8-9 of a volume combining The principles of Mr. Harrison's time-keeper..., London, W. Richardson and S. Clark 1767, bound with a French translation printed the same year by Veuve Girard & François Seguin at Avignon, T.15.51

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