Here's a vintage unused 1980s Batman T Shirt, Made by Stedman, 100% black cotton. Printed only on the front, it has the Batman logo and it says TM & Copyright DC COMICS INC and it has the Graphitti logo on the left sleeve. It is pure black, not faded-looking as my photos show (taken in bright sunlight).
I got an auction lot of 1980s unused first quality super hero t-shirts, still in plastic bag packaging and this is just one of several Ebay listings for them.
As always, all my offerings may be returned for a refund if you wish (buyer pays shipping unless I have misrepresented).