This coin appeared in an episode of "Dragnet 1970" that was run on cable today. Panama-Pacific 1915-S Commemorative Round $50 Gold Dragnet 1970 episode "Internal Affairs: Parolee", first shown November 27, 1969. Sergeant Friday and his partner investigate some old theft cases from 1956, one of which was a stolen commemorative coin. According to the program, the coin was worth $400 in 1956 and $6,000 in 1970. The officers locate the coin, it is then shown in it's holder which appears to be original
Well there was actually two types of $50 gold coin minted for that exposition one round like pictured and the other octagonal. That one may possibly be a real example that the TV show producers used for the episode.
Could be a real $50 Pan-Pac round, could be a reproduction for a prop. Was this episode made before or after the Hawaii Five-O "1913 Liberty nickel" episode?
I believe that the coin and holder were genuine. The coin was not handled in the episode, it was photographed lying on a flat surface, with a story-related piece of paper under it. The photography could have been done anywhere, even at a coin dealer's store. I wonder why Jack Webb and the writers picked this particular coin. The Panama-Pacific commemoratives certainly are photogenic and have "star quality". Possibly someone connected with the program owned it.