In February 1957 Walt Corson recalled collecting strip cards “beginning in 1921 until the supply became exhausted several years ago." ... Honors Players Collection Jersey Blue PC-44 Josh Beckett Florida Marlins(Piece ... Serial #D To 250 - Baseball Cards) PLEASE BE SURE TO CHECK OUT ALL OF MY GREAT ... th.e Beckett web site has tools available that will tell you what others are selling th.e same card for. In t.he end it doesnt matter what baseball cards you decide to collect. For instance, a serial numbered card might say 26/100, which means it is the 26th of a total of only 100 such cards made. Mayor has been unable to find anyone to take his place…. The later period of the 1930s saw the onset of World War II and the end of the baseball cards production. Both of these companies still release multiple sets, including those under Bowman, Bazooka and Fleer however both companies have also cut back in the number of sets it produces as well in an effort to keep the hobby alive.