There probably were £100,000 plaques from Playboy but as far as I am aware there is only 1 Gold £100,000 and that was from the Clermont.
When I spoke to the person that made it, the only thing he would confirm was that it only said Clermont (actually just CC) and I'd be surprised if they went somewhere else for another one.
It would be great if the photo of the Playboy resurfaced as it would help to confirm.
Hope all is well, take care.