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A Propeller Pitchometer,
A Propeller Pitchometer, Scottish, late 19th century, in laquered brass with adjustable spirit level, signed J Nicholson, Optician, Edinburgh, Pat...
A Cased Set of Ivorine Scale Rules 10 engine-divided scale rules and 5 off-set rules, in fitted mahogany case, each signed A G Thornton Ltd, Manch...
A Collection of Surgical and Diagnostic Instruments, three vaginal speculae, incuding an early example in pewter, two nasal speculae, two Zeiss bl...
A Rope Gauge, a Sector and Various Rules Rope gauge by J Rabone & Sons, four 3-foot 4-fold rules by E Preston, A Mathieson, W Marples & Son and a...
A Collection of Physics Electrical Equipment, including two mirror galvanometers, an quadrant electrometer and a variable resistor
A Collection of Physics Electrical Equipment, including three resistance boxes, a standard 100ohm resistor with Greek markings and a revolution co...
Ivory Protractors, Scale Rules, Pens etc, two protractors by William Elliott (9)
A Lancashire Hacksaw, a Percussor and a Hammer, the hammer with lead-filled head, saw 36.5cm overall
A Collection of Surgical Instruments with Ebony Handles, a Hay's saw by Weiss, a metacarpel amputation saw with spare blade, tenotomy knives etc. ...