We have a rusty vintage/antique chain with unique links. It has 2 end hooks and 2 circular hooks within the links. There is a knot which I could not remove - I do think with patience this would could be removed. Each link is about 7/8" x 1/4" in W - there are 1 or 2 links which have been repaired (1 shown in my photo's). The end hooks are about 2 1/2" in L x 1/2" in W at the end of the hook, they do swivel. This may have been an old dog chain......?
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