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

Lot 0366 « Prev Lot View All Lots Next Lot »

A Short & Mason black enamelled and gilt brass pocket 'Tycos' Verschoyle Transit (and case)* and a 70mm gunmetal prismatic survey compass on stem by the same maker.

Realised: $120 plus premium

Lot Details

William Denham Verschoyle was an American mining engineer, inventor and patentee of this instrument in 1905, it was at the same time an Abney level and a prismatic compass with clinometer.

A Short & Mason black enamelled and gilt brass pocket 'Tycos' Verschoyle Transit (and case)* and a 70mm gunmetal prismatic survey compass on stem by the same maker. Image 1++
A Short & Mason black enamelled and gilt brass pocket 'Tycos' Verschoyle Transit (and case)* and a 70mm gunmetal prismatic survey compass on stem by the same maker. Image 1++