Here's a scan from an eBay auction that shows a set of RAWLPLUG advertising poker chips. I have picked up these chips one at a time but never knew where they came from or how they were distributed. I did find the web site for the product advertised... metal fasteners (screws).

The seller misspells the name but does indicate that they were in a box marked "Awarded in the National RAWPLUG Poker Game". Maybe one of the poker players on the bb can tell us if this was an early tournament. Or maybe an annual outing for employees of the company?