69
69
Blagrave, John (d.1611)
THE MATHEMATICAL JEWEL, SHEWING THE MAKING, AND MOST EXCELLENT USE OF A SINGULER INSTRUMENT SO CALLED. LONDON: (THOMAS DAWSON FOR) WALTER VENGE, [1585]
Estimate
7,0009,000
LOT SOLD. 11,250 GBP
JUMP TO LOT
69
Blagrave, John (d.1611)
THE MATHEMATICAL JEWEL, SHEWING THE MAKING, AND MOST EXCELLENT USE OF A SINGULER INSTRUMENT SO CALLED. LONDON: (THOMAS DAWSON FOR) WALTER VENGE, [1585]
Estimate
7,0009,000
LOT SOLD. 11,250 GBP
JUMP TO LOT

Details & Cataloguing

The Erwin Tomash Library on the History of Computing

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London

Blagrave, John (d.1611)
THE MATHEMATICAL JEWEL, SHEWING THE MAKING, AND MOST EXCELLENT USE OF A SINGULER INSTRUMENT SO CALLED. LONDON: (THOMAS DAWSON FOR) WALTER VENGE, [1585]
FIRST [AND ONLY] EDITION, folio (265 x 180mm.), 3 full-page woodcuts on 2 leaves preceding title: "The mathematicall jewell" (recto blank), and on one leaf "Margarita mathematica", verso "The reete", woodcut of an instrument on title-page, woodcut illustrations and diagrams in text, one double-page table, contemporary vellum, first 2 leaves (with woodcuts) frayed and stained at edges, head of pages cut close at beginning affecting a few letters, somewhat soiled, binding somewhat soiled
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Provenance

bought from Martayan Lan, New York, 1995

Literature

Tomash & Williams B174; ESTC S373; STC 3119; Adams & Waters 199; Luborsky & Ingram, English illustrated books 3119 (three woodcuts); Taylor, Tudor & Stuart 65

Catalogue Note

Blagrave's "jewel" of the title was a new pattern of astrolabe, designed for a wide range of mathematical arts, including astronomy, cosmography, geography, topography and navigation. Although it was recommended by contemporaries such as Gabriel Harvey, Mark Ridley and Thomas Blundeville, it proved too elaborate for seamen to use.

This copy has three full-page woodcuts on two leaves bound before the title-page. Whilst the Macclesfield copy contained four such woodcuts (see sale 10 June 2004, lot 363), the British Library, the Honeyman and other copies contain just two. On the title-page is a woodcut depicting an armillary sphere (its stand lettered I. BLAG. SCVLP); other text illustrations show an instrument made of three straight rules, and a man shown using a level to calculate the height of a wall.

The Erwin Tomash Library on the History of Computing

|
London