Mercury Stick Barometer made by Horn & Thornthwaite instrument makers. The body is made of oak with displays for the barometer and integral thermometer of engraved bone. The Barometer is calbrated in ...
Mercury Stick Barometer made by Horn & Thornthwaite instrument makers. The body is made of oak with displays for the barometer and integral thermometer of engraved bone. The Barometer is calbrated in ...
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