Seems the U.S. Royal Flush seems to have very different fuse values as well as wire colors. You can try to find the schematics. Or try messaging Pinsiders that own this game: tobiasbp or Kozansky There are also likely owners on IPSND. Someone could actually take a peek at their game to give you the exact value.

I would also replace ALL those fuse holders. If worse comes to worse and you still cannot find the value, you can trace the wires and count solenoids or bulbs and we can help calculate an appropriate value.

When in doubt, simply choose the lower value fuse.