The blocks were in a box lot that I won in an auction along with several trial color proofs. A total surprise to find it in there. I'm going to send them up to the APS to sell in the internet store. I had them listed on BidStart for a little while before my account was closed. It was difficult to sell anything of value there.
My Michel is 1998-1999 edition. The listing notes are the same. Thanks again.