Presumably type could 'warm up to' these stock illustrations and work hand-in-hand to deliver the message, hence the 'Type Warmers' sobriquet.
Originally known for illustrating many attractive and comical postcards of the early 1900s, Shinn moved into the field of purchasing stock art and redistributing them as electrotypes or 'cuts', the predecessor to today's digital clip art.
A number of the cartoons he sold can be found in the Shinn Kickers JNL font.
Font Family: Type Warmers JNL
Tags: borders, cartoons, decorative, dingbat, display, embellishments, nostalgic, retro, stock cuts, vintage