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Antique Hand Pump Air Compressor Physics Demo, Medical. Approximately 27 tall 18 inches long and 10-1/2 inches wide. Brass, Copper, and cast iron. It is an impressive piece! The pressure gauge is a marked “William Hoskins & Co , Chicago, 1897″. The domed air tank has hammer marks from being hand made. The pump moves up and down smoothly, the leather disk to compress the air needs to be replaced or reconditioned. The rod also shows corrosion and wear. I have not tested the tank to see if it would hold pressure, but it looks great. I have posted 12 pictures for your inspection and assessment. Usually they are spot on, but occasionally they charge too much or I overestimate the weight. ATTENTION: I TRY AND DESCRIBE EVERYTHING TO THE BEST OF MY KNOWLEDGE. I DO NOT CLAIM TO BE AN EXPERT IN ANYTHING. The item “Antique Hand Pump Air Compressor Physics Demo, Medical, 27 tall Brass, Copper” is in sale since Saturday, September 14, 2019. This item is in the category “Antiques\Science & Medicine (Pre-1930)\Scientific Instruments\Other Antique Science Equip”. The seller is “pi-sci” and is located in Fortuna, California. This item can be shipped to United States.

• Original/Reproduction: Original

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