[Linked Image from photos.smugmug.com]

Homer Clark won the 1949 Live Bird World Championship, in Madrid, and again in 1951 in Monte Carlo with his Ithaca Magnum frame NID 5E.
The barrels left Ithaca at 30", were then cut, and in 1949 were jug choked and cut again to 25 1/4".
https://www.doublegunshop.com/forums/ubbthreads.php?ubb=showflat&Number=582111

Making his last winning kill in Madrid 1949 at 3 minutes