THE COLLECTIONS OF JANET & JACK THORNTON
Wednesday, 12 - Monday, 24 November 2025

Lot 0204 « Prev Lot View All Lots Next Lot »

A tonometer, cased, by Weiss London (to measure the internal pressure of the eye); a cased Beck lacquered brass mono prism hand spectroscope, and an Otis King's patent Model K cylindrical slide rule, original box and instructions.

Realised: $40 plus premium
Current Bid $40 (7 bids, reserve met)
Bidding for this lot has now closed

This lot is now closed 24 Nov 7:43 pm (NZST)

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A tonometer, cased, by Weiss London (to measure the internal pressure of the eye); a cased Beck lacquered brass mono prism hand spectroscope, and an Otis King's patent Model K cylindrical slide rule, original box and instructions. Image 1++