Sauer 38H Correct magazine type

[lkgmadmax]

Can anyone comment on the correct magazine base plate marking for a magazine for serial number 3625XX?
My pistol came with the S&S and I want a 2nd magazine but I want the correct types for the serial number range.
Here is a pic of what I have.

1) Marked with S&S
2) Blank with indention

Thanks!
David