I can see picking up a beater of a Koufax rookie. A nice Koufax is very expensive, so a rough one is better then nothing.
Even the King of quality Lionel Carter had beaters.
This one was priced at a dime (see the back scan) when he bought it.
Never thought Biff Schlitzer would be in the same conversation as Koufax
Biff never had a winning season as a major league pitcher, his best season was 1909 when he went 4-4