Hey Paul,
I am not sure I would classify your chip as a true manufacture's sample chip. This chip was part of a poker chip series that Paulson made and sold in sets for the home market back in the early 2010's. There were maybe half a dozen or so different series made on the Paulson Pro Series mold, all of which where 41mm in diameter and all the series had the same 4 colors and 6-white inserts. They didn't sell so well and they stopped selling to the public after only a year or 2. I can recall the following pro-series chips: Lucky Las Vegas, Fabulous Las Vegas, Pharaoh's Palace, 4 suits, 4 aces, Royal Casino, Pride of America, and Wild West. There maybe more, but not sure.

Best,
Greg