The Grand Royale John Olin gun had King Buck inlaid in gold on the floorplate. There was another M21 built in 1980 for well known M21 collector Grant Tom. This gun was built as a tribute gun to John Olin. On this gun King Buck was gold inlaid on the left side of the frame. The work was done by Nick Kusmit. This gun is still in the posession of the original owner. There are two pics of this gun on my website, not close ups, one with Mr. Olin and one with the entire Custom Shop and Grant Tom. The gun you refer to could be another but these two are the only ones that come immediately to mind.