Simon Spiers:
Porthole barometer c1930
Simon Spiers:
Sub barometrer
Simon Spiers:
Zeiss Ikon C1935
Simon Spiers:
Mercury Wheel barometer c1925
Simon Spiers:
Promotional barometer Guinness
Simon Spiers:
Pocket barometer
Simon Spiers:
Surveying barometer altimeter
Simon Spiers:
1930 Aneroid
Simon Spiers:
French aneroid c1885-1900
Simon Spiers:
Modern Met office Mk 3 barometer
Simon Spiers:
Surveying barometer
Simon Spiers:
Aneroid c1900
Simon Spiers:
Precession altimeter
Simon Spiers:
Baromec reference barometer
Simon Spiers:
Aneroid baromter c1900 card dial
Simon Spiers:
Aneroid barometer c1900
Simon Spiers:
Early 7 1/2 inch dial Aneroid.
Simon Spiers:
Early French Dent copy C1865
Simon Spiers:
Porcelain dial aneroid C1910
Simon Spiers:
Porcelain dial aneroid and Thermometer
Simon Spiers:
Met Office MkII
Simon Spiers:
The Universal Barometer
Simon Spiers:
Early exposed aneroid in later surround.
Simon Spiers:
Tiny Italian Holosteric 2 1/2 dial. c1880?
Simon Spiers:
Negretti & Zambra Mining Altimeter
Simon Spiers:
Very early aneroid c1860
Simon Spiers:
Early Aneroid movement
Simon Spiers:
Pocket barometer
Simon Spiers:
Baro small
Simon Spiers:
Early E.J Dent Barometer Circa 1855
