Yay! I also got some $10 state series and $10 1988 bicentennials for around $21. I haven't seen these for close to spot before. I don't know how Renniks (47th edn) calculates its values, but it put the Southern Right Whale piedfort at $90. On the other hand, it put the blue card 1966 unc set at $100, and it doesn't go for that, even in coin shops. Go figure. I'm content either way.