Many people have made a mistake in identifying the Casino de Puerto Rico chip and the Progressive Realty Co. In my opinion the PR chip is a $1000+ chip. The Missouri chip is a $60 chip.

Many years ago I bought a PR CPR chip on eBay. Few bid thinking it was the Missouri chip. Lucky me. Recently a PR CPR was put on eBay at a relatively low BIN price. The seller thought it was the Missouri chip. I didn't see it in time. Another big PR collector saw it before me. Lucky him!

There are only 7 known of the PR chip. 5 of the 7 chips were from the USPC salesman sample book. Therefore there are 2 undrilled and 5 drilled chips. There may be a box or two of the Missouri chip

The chip on the left is the PR CHIP