Hi Guys, thanks for your kind words. It took a few years to get all 12 in 95+ percent original condition.
Eric, The total number of variations, including the sub-variations and not counting the "odd ball" variations are as follows:
K-Date 4
G-Date 6
1936 2
1937 4
1938 2
1939 S/42 1
1939 42 4
1940 1
41 42 2
41 byf 3
42 byf 2
Total 31
In addition, the "odd ball" variations are that I have identified are:
K-Date combinations of Set Back Front Sight and Mauser Hump Frames
Late G-Date with Full Radius Barrel Band
1936, Large S in S/42 with Sharp Radius in Barrel Band
1936, Large S in S/42 with Full Radius in Barrel Band
41 byf, Without Bore Guage Barrel Marking
Now there are probably a few more that i haven't identified, but I'll keep looking. And enjoying every minute ofthe search!!