Posted By:
RhysI personally know of 4 total Mike Donlin signatures in the hobby. I am sure there are a few more but that would give a rough idea of the rarity. I am sure there are several more in scrapbooks or yet to be uncovered finds and maybe evena few tucked into collection of movie actor autographs, but the rarity is probably on par with a the top 3% of all players who appear in the T206 set.
If you ever see a signed T206 card of anyone who died before the 1950's run away from it as fast as you can. Aside from the signed T206 Walter Johnson that was discussed on here last year (That I am convinced is not authentic) I personally dont think there is a single authentic signed T206 of a pre 1950's death date in the hobby. I am also aware there is an authenticated Frank Chance but I dont buy the authenticity of that either.
You can find a Donlin signature cut from a document or something eventually, but expect to pay around $1500 for it.
Rhys