Hello, I am not posting a picture but the description should help you figure out if your use would work out for you.
There are VERY large envelopes. The opening is on the 18" side and 23" in the other direction. These are tobviously not for mailing. Graphic artists, designers and folks who have large yet thin stuff to protect or store might find those perfect. the flap has no adhesive for sealing but you could tape it shut. If you know paper grades this is about 32 lb stock, quite thick.
i have about 100 and they are $1 a piece.
these are hard to find type of envelopes.
if you see the ad i have them.
If interested pls send a first name and phone number, i do these transactions with a voice call, texting not preferred
thanks