TCP #2 (Spr 1975)
The Comics Press

Excerpt: Along with [Mike] Gustovich, another artist that became a professional…a HUGE one, later on, is George Perez. Below you can see an illustration by George…but considering this is only a few years before he became a pro, I have a feeling this might have been inked (uncredited) by someone else. I am just spitballing here, but it looks like it might have been Bobby Wright, who did a lot of fanzine work at the time. At left you can also see a Perez piece inked (much better, obviously) by Gustovich.

https://comicattack.net/2018/10/01/ink-stains-111-tcp-2/