The scene where Herbert T. Gillis decides to destroy the cash that he believes Dobie and friends have counterfeited has money from two different sources shown onscreen. When Mrs Osborne Sr has bills in her fists, they are Mexican (Bank of Sonora) bills of the type often used in this era of television instead of American currency. When the bills are shown in stacks on the table, they are U.S. $20 notes clearly bearing the portrait of Andrew Jackson.