Details
A black-enamelled brass military-pattern plane-table alidade,
by W. Ottway & Co. Ltd.,, with rack and pinion focusing, cross-wires adjustment lens hood and bubble levels, the vertical quadrant with vernier, in fitted plush-lined leather case 15¼in. (38.7cm.) wide
See illustration
by W. Ottway & Co. Ltd.,, with rack and pinion focusing, cross-wires adjustment lens hood and bubble levels, the vertical quadrant with vernier, in fitted plush-lined leather case 15¼in. (38.7cm.) wide
See illustration