It's a form of cancellation allen, pretty common but I'm not sure if Paulson is the entity doing the cancellation, probably. Campiglia and Wells talk about these chips in their Official U.S. Casino Chip Price Guide. These Argosy chips were never approved or used, rather the actual casino chips say "Indiana Gaming Company, L.P." because of ownership issues. Lovely name for your chips, what? Apparently, there was a whole set of "Argosy" chips made but not used.