Almost a year ago I did a trade for some things with a friend, and this hammer was the big part of the deal. Other than getting it to my house last year (in August), the only work achieved on it until recently was to kroil the bejeezus out of it in hope that some of the rusty relic would break loose.
I know next to nothing about these devices, so any information that I may be able to gather would be greatly appreciated, especially photos that might help me get it set up!
The last patent stamp date on it is 1909, and that seems like an historically plausible date of manufacture.
These first photos were taken as the machine sat in Fairhaven, MA. It was kept outside for approximately 5 years before I got it, and who knows where it was before then...