On auction at ComicConnect, part of Event Auction #46, Session #4, is a CGC copy of Superboy #9 from 1994 This 9.8 is actually the highest-graded copy on the census as well and is sitting at only $50 as of this writing Check out King Shark's debut below.
Superboy #9 CGC Credit ComicConnect
Grab King Shark Now,[...]
