I’m not sure about the maker of these but I have seen some references to original vanguard era all American dreams that have an aluminum insert but never show photos so these might be those. These came off of some vintage reidell boots with sure grip deluxe bindings.

On Aug-20-26 at 18:46:20 PDT, seller added the following information:

If you are interested in bidding on the skates that these came off of there is an auction running for those as well on my store.