In the past few years I have built up a collection of old books and technical instruments from the 15th to 18th Century.
It's now time to sell my collection.
Scintific instruments are now for sale by this web site during 2014.
Dividers, Drawing Instruments, Surveying Instruments and others
Practical Geometry, Surveying, Tables
A large late 18th-Century English lacquered-brass theodolite signed W. & S. JONES, 30 Holborn LONDON, the 32.5 cm long telescope with undermounted bubble level, rack and pinion adjustment to the objective and sliding focusing to the eyepiece with sliding dust-cover, mounted over the vertical half-circle, one side with a 30°-0-30° Diff. of Hypo & Base scale, the other with silvered 90°-0-90° scale and vernier with magnifier, raised on two A-frame suports with finescrew adjustment over the 16 cm diameter horizontal circle with bubble level, glazed compass with engraved windrose, engraved circumference scales 1-360° and in four quadrants, edgebar needle and clamp, raised on a threaded four-screw tripod mounting with finescrew adjustment and clamp. 28 cm high
Please make me an offer