PASTORELLI & RAPKIN Ltd BAROMETER ?

Vintage Short & Mason London Anemometer Instrument-Wind,Speed,Mining,Air Flow.

Vintage Pocket Compass from West Germany 3.5cm

VINTAGE FERRANTI AMMETER VINTAGE 1950s

Stunning Vintage Casella London Measuring Instrument Pressure Difference Meter

Vintage Boxed Mining Manometer - Antique Scientific Water Gauge Instrument

Otis king slide rule calculator 6" Vintage Scientific Instrument Made In England

VINTAGE CAMBRIDGE INSTRUMENT COMPANY Ltd OPTICAL/SCIENTIFIC TRIPOD & PARTS.