Hello all. The only things I know about this coin that I believe are correct are that it was struck in 1966 to celebrate the centennial of Monte-Carlo as well as the 10th wedding anniversary of Princess Grace & Prince Rainier. It appears to be gold and I also have a red velveteen display case which has the House of Grimaldi crest along with the letters "NF" embossed or stitched on the inside.
Just wondering if anyone could tell me anything more about it and whether it is collectible and what (if any) the value might be?
Here's a scan of both sides. Thanks very much in advance!
