Clemens $55
Here's an O/C one with bad corners that just sold for $67...
https://www.ebay.com/itm/Roger-Cleme...p2047675.l2557
Boggs $45
Here's an O/C one that just sold for $40...
https://www.ebay.com/itm/1983-Topps-...p2047675.l2557
Glavine $35
Here's one with bad top corners and a rough bottom border that just sold for $31...
https://www.ebay.com/itm/1988-Topps-...p2047675.l2557
Canseco $30
Here's one that just sold for $29...
https://www.ebay.com/itm/Jose-Cansec...2047675.l2557\
All 4 cards are very well centered with sharp corners. If graded, I would say they are all at least NM-MT (8). Sorry for the distorted pics, my camera makes it look as if the borders are wavy. They are not.
Prices listed are net to me, but do include shipping. Prices are firm, so please don't ask otherwise. I think I've fairly justified the asking prices. However, if you buy more than one, I'll knock $5 off each additional card since I'm combining shipping.