I could not find any numbers for the ou 410 Brophy's book indicates Sears had purchased a patent and asked Marlin to make them which they agreed to do so long as Sears shotguns did not have Marlins name on them and they were allowed to make and sell them themselves under the Marlin name. 1939-1952. Available in 410-22lr, 22hornet, 218bee. the hornet and bee combo's made by special order. Only numbers given are for the combo's in 12, 16, and 20 guage.
