Details
A military-pattern gun-sight theodolite,
unsigned, probably by E.R. Watts, numbered 9157, with finely graduated scales, micrometer adjustments, prismatic sighting arrangement and bubble levels -- 7¾in. (19.7cm.) high; and an amateur constructed brass compound monocular microscope with stand -- 17in. (43.2cm.) high (2)
unsigned, probably by E.R. Watts, numbered 9157, with finely graduated scales, micrometer adjustments, prismatic sighting arrangement and bubble levels -- 7¾in. (19.7cm.) high; and an amateur constructed brass compound monocular microscope with stand -- 17in. (43.2cm.) high (2)