Hi-
I am not an expert, but it appears to me that all of the pictures you show are reproduction photographs from the 70s or 80s. The grainy look to them is what tipped me off. Original photos are usually a lot clearer. Also, the Brace type photos you show are the 1970s issue. If they all came together I think you can safely say that the photos all came out in the 70s-80s. Nice items.
Alan
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