Hi Mark,
Thanks for the compliment. Great D&M Athletics piece also, I was going to inquire about the Giants piece, but by the time I got around to it, you had already sold or traded it.
As for the 1968 Topps Plaks, I believe they were distributed in very small quantities in NY (could be wrong though). They were a test issue and were extremely tough to come by. A small find was discovered I think in 2009 by Mile High in PA and some have since come to market. When they first started selling them off, I believe a full set went for over $60,000+. I think the prices have come down some but they still bring a lot of $$$ at auction.
If it weren't for that find, I doubt I would have one. As I mentioned earlier, 707 sportscards had one about fifteen years ago ($900 for a single Clemente), but I was in dental school at the time and couldn't justify it then (not that I can now either
). But when the find happened, I figured it was now or never.
Mike