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地址

伦敦

4 Bury Street, St James’s, London, UK

(地图)

纽约

PO Box 329, Larchmont, NY, USA

开放时间，伦敦画廊

周一至周五：10:00-18:00

周六请预约

公休日：所有银行假日以及 8月1日至31日

营业时间，纽约

仅限预约

信息

Website: William Joseph
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Surveyor's offset staff
1850
£7,500
BUY
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[Offset staff].

Surveying and navigational instruments
  • 发布日期: c1850.
  • 物理描述: Mahogany staff (4 feet 9 inches) with steel shod pointed foot, the pole 1 inch dia., 4 inch dia. hard ball.
  • 库存参考: 15107

笔记

A finely made example of an offset staff. The instrument consists of a turned wooden pole. At one end is a metal spike so that the pole can be easily driven into the ground. On the other end is a wooden ball with a cross-slight. The instrument was designed to measure off sets, that is, to locate objects that are at a 90 degree angle to the surveying centreline.

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DUDLEY, Robert 1574 - 1649

Dudley was the illegitimate son of Robert Dudley, Earl of Leicester, and brother-in-law of the celebrated circumnavigator Thomas Cavendish. Dudley joined the Royal Navy and led a privateering expedition to South America in 1594-1595. In 1596, he commanded the ship Nonpareil in the Earl of Essex’s successful attack on Cadiz, and was knighted for his services.
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地址

伦敦

4 Bury Street, St James’s, London, UK

(地图)

纽约

PO Box 329, Larchmont, NY, USA

开放时间，伦敦画廊

周一至周五：10:00-18:00

周六请预约

公休日：所有银行假日以及 8月1日至31日

营业时间，纽约

仅限预约

网站: William Joseph