location of number stamped on 4sp manual transmission

[pauloe]

I see in the casting on the left hand side # 111 26107 01.  Above that I see 6 3 69 which is casting date?  (would make sense my build date is 11.Aug.69)  And above that is something like 81 5 F.  Don't know what this is.  These are all in the casting.  Looking all around I see no stamped number, should be six digits I believe.  My data card says transmission number is 004109. Anybody know location?  Thanks, Paul

[pauloe]

found it.  bottom, rhs, up front where transmission connects to bell housing there is a machined flat spot, six digit number stamped.