'Very rare and unusual 19th century Circular Protractor with Tangent...
Early 19th Century Silver Mounted Shagreen Cased Drawing Instrument...
A 19th Century Napier Pocket Folding Compass. This ornate instrument...
Two Early Instruments From An Original Drawing Set By Buterfield....
This is a set of adjustable plated draftsman's trammels for accurately...
A high quality 19th Century drawing instrument Set, made of a pocket...
This is an 8-piece drawing instruments set in fitted mahogany case....
This is the most compact of all drawing instruments, a true mechanical...
This is a set of 3 bow compasses with case marked Lawes Rabjohns...