After admiring these for some time, I finally acquired an example. This is also the first I've seen with dramatic toning. The brainchild of Andor Orand, this was "the first square coin-item with sharp corners and serrated edges struck in a die with collar, and the first coin-token designed with the aid of a computer" (quoted from his website). They were produced and sold by Square Deal Productions, Inc. New York and minted by the Medallic Art Company in Danbury, CT. After Square Deal Productions was dissolved in 1984, the dies were donated to the Smithsonian Museum. See here for more info: http://www.sqrdl.com/index19f5.html?sku=3
This medal is closing in on 40 years old and this is the first I’ve heard of it. Very interesting and weird enough that I’d buy it too. Nice pick up
It's certainly one of those unusual items you don't see often. I discovered these exist from a thread either here or the PCGS forum years ago. I wasn't actively searching for one but jumped when the opportunity to buy a toned one came up recently.
Some of those are optimistically priced. They can be found for less (especially for uncertified examples).