I expect that they have an older ceramic tourney set and a newer clay tourney set. Mixing them for events is not uncommon (unless you're a chipper).Hopefully we’ll find out soon. But I’d be shocked if there aren’t some RHC 1K’s.
Like I suggested above, it makes much more sense to me that they ordered RHC tournament chips, and then ended up topping it off with some cheaper ceramic chips (so the set could play bigger) than the idea that somebody decided to order all clay chips, except for the 1Ks
Cash $1000, $5000, and $25000 checks are all IHC, I think (primary and secondary).