I found my IMGUR login so here are a few ads I had saved there --

1915 ad for Ithaca guns with the Infallible Single Trigger --

[Linked Image from i.imgur.com]

February 9, 1907, ad for the Philadelphia Single Trigger --

[Linked Image from i.imgur.com]

December 15, 1906, ad showing the other side --

[Linked Image from i.imgur.com]

Ithaca NID Super-10 from The American Rifleman, September 1929 --

[Linked Image from i.imgur.com]

July 1932 for the Magnum-10 --

[Linked Image from i.imgur.com]

1890 ad for the American Arms Co. "Whitmore" hammerless double --

[Linked Image from i.imgur.com]

1931 ad for The Sportsman --

[Linked Image from i.imgur.com]

September 1902, Hollenbeck Gun Co. ad --

[Linked Image from i.imgur.com]