The case with the money Charlie stole is much smaller back in his apartment than the one he entered the pharmacy with.
In the pharmacy, the radio announcer, listing major league baseball scores, says "Detroit 4, Kansas 3". There was no major league team located in Kansas at the time. The closest was the Kansas City Athletics, which was located in Kansas City, Missouri.
The closing credits misidentify Robert Redford's character as "Charlie Pugh".