Did John Nelson Cooper make the 1952 movie Iron Mistress

[david boone]

There is a Blackjack Anaconda 1 bowie fighter, circa 1970 on e-bay, item #160232394219. In the discreption has this statment "This Blackjack knife design is derived from the John Nelson Cooper Bowie pictured in the Iron Mistress Movie and I believe another very small batch of these bowies were made". I say this is not correct, the Iron mistress used in the 1952 movie with the same name staring Allen Ladd, was made by the prop department. I have attached photos of the Iron Mistress by John N. Cooper and the blackjack anaconda1 bowie fighter. What is your opinion was the blackjack design drived from cooper Iron Mistress?