I just pried off an inlay with an "exacto" knife, something I often do to the inlays and edges of chips to see how they are made.
I have/had many of these. My notes might help; I forget.

Robert
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Jason Robards, Joan Woodward, Henry Fonda and Charles Bickford (l to r) in "A Big Hand For the Little Lady" (1966).
http://www.antiquegamblingchips.com/StillsA_TopMaleStars.htm