I owned one of the King’s Ferry 16 gauge Ultras, it had killer wood and a ventilated rib, screw choke barrel, that left it about the same weight as a mid 50s 16 gauge 37 that had a plain barrel the same length. Sold both, but, more than doubled my money on the sale of the Ultra. Did OK on the Feather Weight, too.
I still have a King’s Ferry 12 gauge, 3” magnum (ever seen one?) with two barrels, 26” and 30”, too short and too long. Good quality gun, HEAVY, over 8 lbs, I shoot some trap with it, but, have to reverse the safety back to right handed since my difficulty with the left eye started.
44 seasons past, my Dad’s deer hunting partner sold me a model 17 for $50, that started me down the Ithaca path. I have lefty and righty safeties for that gun, and two barrels, a 26” modified and the 21” Baker choked barrel that had a ventilated Cutts on it, that I hated. Stan amputated the Cutts, best grouse hunting move I ever made.
Fine guns. Ithaca 12 magnum, and Remington model 17:

[Linked Image from jpgbox.com]

Best,
Ted