Ed,
The drawing # seems to be correct for a Garand rifle from 44!
I also see a P on the left and a M (from national match????) on the right!
The REP could be from Winchester but didn't they put W.R.A. on there barrels???
Could REP stand for "reproduction"?

?
Is that a crack on the left down side???
My opinion:
This is a reproduction barrel which should be put on the market as the real thing. But the one that is putting the numbers and letters on the barrel did not know what he was doing and mixed the codes from SA and WRA!
Rob