Marty has set the record straight now and determined there are 160 total Doeskin cards. 80 came from Wings and another 80 from Rails & Sails (40 trains and 40 ships). The Wings subset runs from #1-80 and the Rails & Sails from #81-200 but 40 numbers are skipped in the latter. While it seems cruel to skip number such an issue, I doubt anyone was ever able to complete a set of these in the 1950's. I don't think there are that many sets around even today as these are seldom seen. The word from Mr. Krim is that it's hard to find cards even in EX, no surprise given the method of distribution.
Marty has a huge stock of the Doeskin cards (hence his wonderful checklist) and can be contacted at firstname.lastname@example.org if anyone out there is interested in purchasing same. Marty also has a huge selection of other Non Sports cards as well and is one of the good guys in the hobby so feel free to pepper him with orders!
This also means the Doeskin "side checklist" for Rails & Sails in the Modern Hobby Guide is incorrect as it has 20 too many possible cards shown. I never developed a side list for Wings as there was virtually no information available at the time I wrote the book. In addition, The ACC # for Doeskin Wings is F381 and for Doeskin Rails & Sails it's F378. I treat them as a single issue below but that is not definite.
Here is the Doeskin checklist: