Engineer's Spirit Level
Fahrenheit Thermometer
Precision Engineer's Spirit Level
Pocket Barometer by Negretti & Zambra
Pocket Barometer
Sekonda Stop Watch
Pedometer by Henri Chatelain
Students Microscope
Set of Architect's Scale Rules
Parallel Rolling Rule
Drawing Instrument Set
Art Deco Desk Barometer
Set of Balance Scale Weights
Elliott Speed Indicator
Large Laboratory Balance Scales
Amber Glass Ruler with Silver End Caps
Fine Jewellers Diamond Scales
Bronze Perpetual Calendar
Pocket Barometer by Thos Armstrong & Brother
Display Barograph by Yeates & Son, Dublin
Short & Mason Stormoguide Barometer
