No idea where this one came from, no markings on this handy device, perhaps there were decals on the flat areas at one time? The cast lugs seem like they're on the wrong side of the jaw but perhaps there are missing parts too.
Update, Thanks, Dave for the info below.
I guess there are a couple of missing parts...now we know what those lugs are for:
ReplyDeletehttp://vintagemachinery.org/MfgIndex/Images/24278-A.jpg
An original patent, showing the lugs but no mention of the base:
https://patentimages.storage.googleapis.com/19/8a/0a/1a5cec7e1e7126/USD142546.pdf
Thank you, Dave!
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