This thing blows. In this video I do somewhat of a different restoration than in most of my projects. This tool seems to be fairly rare as I cannot find very much documentation. The patent can be found here: https://patents.google.com/patent/US9... The only advertisement I can find is from a 1913 catalogue here: https://imgur.com/a/JfFsyNo It is an early 1910s "Hypress" blower and pump made by L. J. Wing Mfg. I believe this company is still in operation. Since this was such a unique piece, I did not want to remove the patina off the brass components as that ruins the historical significance and value. I also chose to repaint the tool with the original black japanning finish that would have been used at the time. This helps make the restoration more authentic than my usual projects. The design was very simple with only 4 parts making up the blower internals. After a good clean and oiling, the tool worked very well and had enough pressure to blow up some balloons. Apparently, this low pressure blower was used to separate pieces of paper for printing.