Jim, what you desribe is unknown to me -
especially if it's embossed. However, even though
I'm not aware of the 1DM in that material/color, I am familiar with the material as some French and Belgian casinos used this after WWII.

The 2DM I illustrate trades at $20 in Germany and
on eBay. Since your piece is 1DM, it is worth
more to collectors. Again, providing it's
embossed as the example I show. If not, and if
it's plastic laminate (approx. 32mm) and peraly,
it's a $8 to $12 piece.

Looking forward to seeing a scan.

JB