Spiderman From The Black Book Valentine by Jack Kirby

In the way back I sold my copy of the sketchbook love-letter to Roz Kirby for $100, and in the way way back I found it gathering dust on a backshelf at Chuck's Megastore and the clerk said, "oh, I dunno, how bout fifty bucks?,"so I cannae complain.  So, I need to complain....it's bad enough that I sold a hardbound of A Look Back by Berni Wrightson, and I sold The Studio by Wrightson, Jones, Kaluta, and Smith, and going way way way back I sold my first collection, but this one--this one hurts the most