1) Brand of toothpaste 
Kolynos was the name of an old-time line of oral care products that was created by N.S. Jenkins in 1908 and acquired by Colgate-Palmolive in 1995. The brand was very popular in the thirties and forties, and sponsored several well-known radio programs, including Mr. Keen, Tracer of Lost Persons. See . Although not now readily available in the US, t...