The fact that they were issued close together is in line with what I said. The casinos probably ordered the chips and left it up to USPC to design the inlay.

Since they were ordered around the same time, there is a good chance that both inlays were designed by the same artist who used the same font. As I've said, I've seen this before, two similar inlayed chips ordered around the same time. Similar looking inlays but different clubs