catman76

I keep all my clipped comic strips in Vario pages in binders... https://www.lighthouse.us/vario-stock-pages.html

The only Masker I know of is from Big Bang Comics...

Searching through junk shops and putting classifieds in newspapers and stores for 35 years i have seen a lot of stuff like this, mouse chewed comics and ones full of mouse poop or a whole stack that had been eaten completely through top to bottom my bugs. I once got and answer to a classified ad of mine in the early 90s from this guy that said he had tons of comics in his garage. He obviously didn't look at them before he called me because when I got there the box had been sitting on the garage floor for decades and gotten wet constantly and only the very top few comics weren't totally a disgusting mess. it was mostly late 50s and early 60s stuff. The only comics I salvaged out of there was a Batman 127 and a couple Date With Judy comics and those were water damaged kind of bad and still stink or mildew and stuff to this day. The rest were a soggy pulpy disgusting mess and had to be tossed.

Yeah, every single slabbed comic.

Action Comics #1 was cover dated June 1938, but was for sale on the newsstands April 18th, 1938. That on sale date was given in all the Superman copyright infringement lawsuits against other publishers.