Check out the patent for the modern monkstrap shoe (Baltimore, 1924). 
Also, for uber shoe nerds, here are the patents for the modern glued on feather in welt construction (Baltimore, 1921), elastic button shank (Baltimore, 1885), and adjustable shoe tree (Baltimore, 1903).
(all via Ron Rider’s Twitter)

Check out the patent for the modern monkstrap shoe (Baltimore, 1924). 

Also, for uber shoe nerds, here are the patents for the modern glued on feather in welt construction (Baltimore, 1921), elastic button shank (Baltimore, 1885), and adjustable shoe tree (Baltimore, 1903).

(all via Ron Rider’s Twitter)