I got this mixed in with a whole lot of wrenches - I've seen this before,
but darned if I can remember on what - I don't think it's automotive,
though it could be. it is presumably held in place with 1/2" diameter bolts,
forged, marked DF and DD57 some silver paint residue and some little bit of
red paint - what does it fit?

two images below, or if your viewer cuts off the images, to see the whole
image, go to my web page http://www.wbnoble.com and click on
"mysteries"





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Bill -
www.wbnoble.com