https://www.myfonts.com/fonts/filmotype/filmotype-maxwell/ It's Filmotype Maxwell! a bouncy interlocking serif originally released as a Free Style typeface...
This amazing font has over 5 million automatic interlocking letter combinations to create its very own typesetting system. Filmotype Maxwell was developed from the original font filmstrips and includes a full international character compliment, automatic ligature combinations, ordinals, fractionals, and a host of alternate characters in dynamic OpenType format.