Wife Killer - S3-E17
Continuity mistake: Barbara searches the one-armed man's wallet. We see an insert shot of two cards, both with the signature "Fred Johnson." But in the next moment, she claims that no two of the IDs are the same before saying, "Oh, wait, here are two." She then "finds" the cards she'd already found in the earlier shot. (00:18:00)
Answer: Production vehicle models aren't in sync with the calendar year. The '65 Mustang began production in March 1964 and first sold in April 1964, before it was "introduced" the following year. I don't know which model was seen in the episode, but the 2+2 fastback was sold in September 1964. The 1964 film "Goldfinger" uses a 1965 Mustang as part of Ford's product placement. Basically, in the 1930's, FDR ordered automakers to release vehicles in the fall of the preceding calendar year "as a means of facilitating regularization of employment in the industry." Now, automakers can release new models as early as Jan 2 of the preceding year.
Bishop73