April 5, 2024
US NAVY SHIPS BAROMETER FEE&STEMWEDEL 42 CHELSEA CLOCK
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This listing is for a VERY nice FEE&STEMWEDEL ships barometer made for the Bureau of Ships in 1942. Bakelite case, (to save brass for critical applications like shell casings), and plexiglass lense,( to keep down shattering during bombardments). I believe the lense is original, and about as perfect as the come. 4 1/2" dial, graduated in inches of mercury. 6 1/2" o.a. diameter. Movement is fully jewelled, twin large capsule type. VERY accurate instruments that are not to be confused with this companies"consumer" type barometers.Serial number 6494, which indicates early 1942 production.Possibly the MOST accurate one I have seen.).Very accurate, now, after extensive chamber work. Most suitable for sea level, or close to it, use. GUARANTEED This instrument has been ultrasonically cleaned, then sparingly lubricated with moebious clock oil to provide many years of trouble free service in weather predicting aboard your vessel. Finally it has been precision calibrated in my IDEAL-AEROSMITH calibration chamber to provide complete accuracy.Check out the calibration report for assurance of accuracy. READ THE "ABOUT ME" PAGE FOR PICTURES OF MY CHAMBER AND GAUGE CALIBRATION BENCH THE REASON FOR THE"STRANGE" READING ON THE DIALS OF MY INSTRUMENTS IS THAT I LIVE AT 4400 FEET ABOVE SEA LEVEL. THE AVERAGE AMBIENT BAROMETRIC PRESSURE IS 25.5" or
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