Five of the six have been correctly identified so far:
Spoilers
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339. The seller told me it was a wood lathe driver but I haven't yet
verified it.
340.
341. Shocker 100 arrowhead, as mentioned in some of the posts, it's for
small game or stump shooting, with the wires stopping it from burrowing
under grass.
342. Triple Decker puzzle
343. Lockout/tagout device for multiple padlocks
344. Fishing reel
More photos and a link are up on the answer page:
http://pzphotosan63.blogspot.com/
Rob