Details
A black-crackle-finished balloon theodolite,
by E.R. Watts & Son Limited, with electrical switches, telescope with sights, prismatic attachments, vernier adjustments, with plummet amd ray shade, in fitted mahogany case -- 12in. (30.5cm.) wide; and two brass, aluminium and wood extending tripods
See Illustration (Part Lot)
by E.R. Watts & Son Limited, with electrical switches, telescope with sights, prismatic attachments, vernier adjustments, with plummet amd ray shade, in fitted mahogany case -- 12in. (30.5cm.) wide; and two brass, aluminium and wood extending tripods
See Illustration (Part Lot)