Posted By:
CatAlso Lyman, not to get to technical, but the D350-1 (although your website presently states _D350-2s_ = M101-4s) may be more closely related to the M101-5s than the M101-4s.
The Standard Biscuit Sisler above is numbered 166 and identifies him as a Pitcher by the "P" designation, as does the M101-5. The M101-4 of Sisler is numbered 164 and indicates he is a first baseman with the "1st B" designation on the card.