The Fox-Kautzky trigger was selective. Insert added to some 1914 A.H. Fox Gun Co. catalogs --

[Linked Image from i.imgur.com][Linked Image from i.imgur.com]

From mid-1932 through 1934, Savage offered a non-selective trigger on their A.H. Fox guns, I suspect the same trigger they introduced on their J. Stevens Arms Co. doubles in June 1932.