Circa 1799, a small monocular spyglass telescope signed on the draw tube, ‘D. Adams, London’.
Total length (closed) is 5.5 cms, objective lens diameter 28 mm.
Constructed of tortoise shell, ivory and silver in original sharkskin case.
No cracks / splits.
Ask the Dealer
I live in Lancashire (U.K.) and have been a dealer and collector of scientific and nautical instruments for a number of years. My stock has included some fine items from museums and colleges, which were surplus to their requirements. I occasionally purchase some interesting items from abroad, having established some reliable sources.