SA EMcF stock

[RCS]

You can find both the small crossed cannon stamp and sometimes the large crossed cannon stamp on these stocks.
There also appears to be three variations of the EMcF stock:

1. first variation has the curved or tapered clip latch cut

2. second variation has the square bottom clip latch cut

3. third variation has the square bottom clip latch cut and the small crossed cannon stamp on the
pistol grip flat

photos show the second variation

[RCS]

Here is the barreled action from April 1943 for the above EMcF stock

[RCS]

Last photos show the odd profile of the receiver tang on this 1.5 mil receiver