[Harford20]

Dan,
I cannot give you any information regarding the set, but for a player, Ted Williams, there are 3 known back variations (possibly 4) of the 1943 M.P. & Co Ted Williams with ink color variations and spelling errors. All backs are in the same format, just errors or ink color changes that create the variations.

1-M.P. & Co. Hand Cut--"THEODORE", Blue Ink
1-M.P. & Co. Hand Cut--"THEODORE", Black Ink
1-M.P. & Co. Hand Cut--"THEORDORE", Blue Ink
1-M.P. & Co. Hand Cut--"THEORDORE", Black Ink ? Exists


There also is a VERY COMMON error that is noted with Ted Williams in that there is a 1949 M.P. & Co "no number variation", (meaning no #101 printed on the back of the card) that all the TPGs continue to call a 1943 M.P. & Co. This is NOT a 1943 printing, but a 1949 printing. The 1943 M.P & Co Ted has the company tag line at the bottom and the 1949 does not (at least for Ted Williams), but the TPG companies refuse to accept that there is a 1949 M.P. & Co "no number variation" as it is not listed in any guide. If you have the cards side by side, this variation can clearly be seen as a 1949 card.

Of note, there are also 2 spelling variations of the 1949 M.P. & Co for Ted Williams.

101-2 M.P.& CO. HAND CUT--"THEODORE FRANCES", #101
101-2 M.P.& CO. HAND CUT--"THEORORE FRANCES", #101
(101)-2 M.P.& CO. HAND CUT--"THEODORE FRANCIS", No number

Sorry, can't help out on any other players though.

Dave