200 GBP ($250 USD)

An unusually stout, eight draw pocket telescope by Wm. Harris c.1810


29 x 5 3/4 x 1 3/4 inch diameter




William Harris

Country of manufacture

UK and Ireland

Categories: Engineering antiques, Office Antiques, Telescopes - Refracting


An unusually stout, eight draw pocket refracting telescope by William Harris of 47 Holborn Street c.1810.

OG measuring 1 3/4 inches in diameter, 5 1/2 inches closed and 29 inches open. Wonderful script signature on the first draw, “Wm. Harris’s, Improv’d Pocket Telescope, 47 Holborn, LONDON”, the optics are clear and sharp although itt has had one hard knock in it’s 200 year lifetime resulting in 3 edge chips of the OG (outside of the focal plane) and a slight bruise of the collar. The draws are nice and tight, the barrel covered in black leather and the ocular lens protected by a sliding cover. Removeable OG brass cap intact. The early knurled roping is indicative of the age. The magnification is 15-20X. A good early example of Harris’s workmanship.

William Harris set up business at 47 Holborn Street in 1805 and remained at that address for 10 years moving up the street to No. 50 in 1815. With the inclusion of others , it became Harris & Co. thereafter, until his son Richard joined the firm and the name changed to Wm. Harris & Son from 1831-1855.

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CA ScientificaOpticae

Scientifica Opticae

Mark Hacking (Scientifica Opticae Inc.) has been an avid collector/dealer for over 30 years. A former Science teacher, he has an innate love for anything natural or mechanical. Specializing in optical (microscopes, telescopes), surveying, medical, weighing and drawing instruments, he is an active participant of the Scientific Instrument Fair in London. Living in Stratford, Ontario, Canada, with his wife and two children; Mark looks forward to meeting as many fellow collectors as possible, and has a worldwide following on eBay (Sciopti).

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