This information provided via the courtesy of Vintage Slots of Colorado, Inc.

If you have an antique coin machine and want to sell it, please send me an email. If I am not interested in it, I will forward your email to a collector who probably is.

The following information is the web version of Coin Op on CD which was a book all about antique coin machines and it was distributed on a CD-ROM. This book was written in 1995 and sold in 1996. Please take this into consideration when reading the articles. There are no plans to come out with version 2. However, we do plan on periodically updating the information on the web version.
The CD version of the book has pricing information as well as a dealer directory. Since the prices are out of date and many of the dealers/collectors may no longer be collecting the machine we have purposely left this information out of the web version. However, we do keep in contact with many dealers and collectors who are actively buying and selling machines and would be happy to put you in touch with one if you have a machine you are looking to sell.

If you are looking to purchase an antique coin machine you may also send me an email and I will put you in touch with a reputable dealer. Odds are, I will not be selling the machine you are looking for (since I rarely sell any machines).

The FOK (circa 1923) was legal in marginal areas because the machine would show the player how much he was going to win on the "next pull". Since the player knew how much he was going to get on the next pull he wasn't gambling. The way the machine works is when a winner is hit, the coins fall on top of a slide. When the next game is played the slide moves and the coins won on the previous play are paid out. A small window indicates how many coins are going to be paid. Many later slot machines had the FOK feature. The version introduced by Mills in 1923 also was a four column mint vendor. Jennings and Watling copied the 1923 Mills Version. Click here to see a close-up of the top casting.

Here is another picture of a 4 column FOK
More information can be found on page 97 of Bueschel's "Slots 1" book.