Autographed 1949 Bowman of pitcher Dave Koslo, signed in blue ink pen. Koslo passed away at age 55 in 1975, well before autograph seeking became widespread in our hobby, making every Koslo signature a hidden gem. Authenticated and encapsulated by PSA/DNA, the signature grading GEM MINT 10. The card itself has graded AUTHENTIC due to a slight trim. Part of a collection of signed 1949 Bowman that was sold at auction more than a decade ago, which we have been offering over our last two auctions. The population report shows just three signed examples!