From left to right:
A early strike over, not marked 36F but stamped 1-1/8, which is the inside width. This could be just a error, so maybe someone else will have one. Height 1-3/4.
Another strike over, but marked 36-F, same height.
No date code, marked 36-F, height 2-9/16.
These were, according the "Snap on Story" were the first specialty sockets. They are shown in the 23 cat, and are last shown in the 28 cat.




