The John Inglis Co. Limited of Toronto (washing machine makers etc.) made Browning Hi-Power 9MM (9x19) pistols and the best BREN-guns ever made in .303 Brit and 8MM Mauser in the 1942-45 period for the Canadian government. Post-WW2, Inglis had a commercial arrangement with FN Belgium. I have a photocopy of an undated John Inglis catalog c.1954(?).
On Page 6 Inglis offers the "F.N. ANSON HAMMERLESS SHOTGUN".
The "Anson" illustrated appears to be a line drawing from a photograph. It shows a SxS boxlock shotgun, with splinter forearm, double triggers and an English grip. Described as 6-1/2 LBs with 30" barrels. Offered in 12 gauge only. Full & Modified chokes, auto ejectors, 30" barrels - $275.00 (Canadian).
Same with extractors only, - $240.00. Improved Cylinder chokes (skeet) with auto ejectors, 27-1/2" barrels - $275.00.
For comparison, Page 3 shows the "BROWNING OVER and UNDER SHOTGUN" (edit: Superposed) in 12 gauge only, 26", 28", and 30" barrels for $235.00.
Page 2 shows the "Browning Automatic Shotgun" (edit: Auto-5) in 12 and 16 gauges ranging from $149.50 to 172.50.
So....this offered "Anson" SxS was more expensive (in Canada, anyway) than the Superposed. From Ned Schwing's Superposed book, we are told that Val Browning had a hard time with FN producing highly finished commercial guns for him...and that he had to institute his own "in-house" QA team to get the quality goods made. It was much easier (and much more profitable) for FN to make military firearms requiring less "hand-work" finishing. Left to their own devices, I speculate that FN dropped the post-WW2 resumed production "Anson" just as soon as they could in the mid 1950s.
It is also clear from Schwing's book that Val Browning would have taken many more "Browning Superposeds" from FN if he could have gotten them made. FN was money-driven, and there was more bottom-line profit in military firearms.
It may also be that the post-WW2 Anson production was really just a conversion of assets/parts clean-up from pre-WW2 made parts - FN being too busy in the 1950s to resume expensive and labour intensive SxS production when they had easier fish to fry.
