I have always agreed with two types. At the point where the 935s appeared, different type.
For me, I'll summarize:
1) Type 'A' S&L clearly defecting until 935's RK.
2) 935 silver requires 27% less pressure to create.
3) 'Dent Row' is in reality most likely a material spill.
4) Pimples and defects a fraction of a mm appear on Type 'A' and 'B'.
5) Type 'B' is evidenced by 935's and perfect 800's.
6) Perfect S&L RKs are not showing up in the marketplace in steady succession over the years. (At least not that I am aware of, maybe someone else knows better.)
7) If Daughter dies were created in 1944, they could continue to have been created, up to this minute. (And are if the master ever existed.)
8) Repairs to dies were commonplace but not perfected until the mid-50's.
9) The 57 model die changed when the 'B' type expired.
10) If master existed, creating another 'A' type die would have been expedient and more attractive than the choice.
11) S&L survived the war. Die(s) survived the war.
Conclusion (for me): Single repaired die. (For the sake of the persons owning 'A' types, I hope I am right. Or it is likely 'A' Type dies are created today from the master.) And 'B' came after 'A'.
For me, I'll summarize:
1) Type 'A' S&L clearly defecting until 935's RK.
2) 935 silver requires 27% less pressure to create.
3) 'Dent Row' is in reality most likely a material spill.
4) Pimples and defects a fraction of a mm appear on Type 'A' and 'B'.
5) Type 'B' is evidenced by 935's and perfect 800's.
6) Perfect S&L RKs are not showing up in the marketplace in steady succession over the years. (At least not that I am aware of, maybe someone else knows better.)
7) If Daughter dies were created in 1944, they could continue to have been created, up to this minute. (And are if the master ever existed.)
8) Repairs to dies were commonplace but not perfected until the mid-50's.
9) The 57 model die changed when the 'B' type expired.
10) If master existed, creating another 'A' type die would have been expedient and more attractive than the choice.
11) S&L survived the war. Die(s) survived the war.
Conclusion (for me): Single repaired die. (For the sake of the persons owning 'A' types, I hope I am right. Or it is likely 'A' Type dies are created today from the master.) And 'B' came after 'A'.
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