This singular stamp cachet included a very rare N. 212/2000 coin. made of .999 silver and coated with 24K gold.
The size is aprox. the one of a Quarter, perhaps a little thicker. Its stamped Spokane, WA, April 18th, 1974 and created for the PRESERVE THE ENVIRONMENT campaign. Already 36 years ago Peter Max was promoting the care of the environment. Max signed each one of the 2000 envelopes, and I was in doubt if the signature was authentic, so I went today December 11th 2010, to the Wentworth Gallery in Fort Lauderdale where PM was having a meet and greet, and he gave me his blessing , literally!It is his signature and he remembered the item.
The back is a COA by a Martin Clark, Director of the Medalist Cover Society, certifying that "no more that the 2000 units will be made"