I was only able to find one other pair of shoes with this mark, which were attributed to 1960s. 60s or 70s would be my guess but I know next to nothing about shoes...thanks in advance.
The width notation appears to be AA (at least I assume that's what the 2A written on the inside of the strap means). I found another thread somewhere in here that said that the width system changed over to NMW in the 70s, so I wonder if that's a clue in dating them?