Coin folder

This changed when J.K. Post in collaboration with The Whitman Company invented the inexpensive coin board in 1934.

The modern day coin folder's invention is disputed by two major rivals.

Yeoman took the old penny board design and simply folded over the portions to create a book (or folder).

[3] The other take contends that the folders were devised and first sold by the Daniel Stamp Company (DANSCO) of Los Angeles in 1939 or early 1940.

[4] In either case, this rivalry continues to the present day as both companies have made "high quality" folders for collectors since the 1940s.