So I have posted my findings below.
Do you have any to share?
I'll start off with "Planes".
I have only one Plane related knife. A Imperial Knife Co. of Providence RI. c1925 1942.
"The American Boy" was a monthly magazine published by The Sprague Publishing Co. of Detroit, Michigan from November 1899 to August 1941. At the time it was the largest magazine for boys, with a circulation of 300,000, and it featured action stories and advertising for the young boy. This Imperial knife was most likely only one of many advertising items sold through the magazine.
Imagine how happy the young man was that originally had this knife in his pocket.
I also have a "wish list" of Aviation cutlery I would like to find.
During World War II some Japanese flyers carried inexpensive all metal knives embossed with low relief images of Japanese aircraft.
Bernard Levine stated that a half dozen different types are thought to be manufactured.
These are now very rare, and largely forgotten in Japan.
I do not own this knife.
My "Train Knife" was made by Meriden Knife Company, made for Miller Bros, Meriden CT. 1917-c1932.
I love Advertising Knives. The below knife not only shows a Coal powered locomotive pulling passenger cars but it also has the world famous "Travelers Insurance Company" located in Hartford, Connecticut. Hartford is known as the "Insurance capital of the world." The unusual wording might indicate that Traveler's issued not only insurance, but also tickets to various destinations.
L.F. & C. (pocket knives 1914-1930s) also made a knife very similar like this.
I have two Auto related "Automobile" knives. The first one listed below has no mfg. or information listed on the bolsters, however, Germania Cutlery Works (Imported by Adolph Kastor & Bros, New York, N.Y.) specialized in wholesale cutlery firms and played a large role in 19th and early 20th century American cutlery.
My second Automobile knife was made by "Dolphin Cutlery Co." New York, N.Y. 1918-1920s.
A Oil & Gasoline advertiser.
Trop-Artic Auto Oil:
Race-O-Gasoline:
Manhattan Oil Co: Ink embossed on blade.
