A movie poster for the 1952 Dean Martin & Jerry Lewis comedy “Sailor Beware” had the text rendered in a casual style of brush lettering similar to that found on store show cards. This inspired Show Card Brush JNL, which is available in both regular and oblique versions.

Born in Fulda, Germany, Martina Theisen studied communications design in Mainz. She spent many years working for the television company, SWR Mainz. Now she works as a designer and illustrator. She creates fonts, as well as illustrates children's books and school textbooks. For Linotype Typentypo (2002, part of TakeType 4), she designed the display faces Linotype Creatures, Linotype Improfil Outline and Black (profiles of funny faces), Linotype Smileface, Linotype Maenneken and Linotype Astrolo (hand-drawn astrological symbols).