Giant Four Flap Envelopes?
 

I'm looking for a source for those giant four sided white envelopes, like the ones Mill Pond Press uses. They are about 25x33 (that's a huge guess, I'm probably way off) and have four flaps that fold in, then are sealed with a gold seal. I get mine from a local framer (free) that gets prints from Mill Pond Press.

Any idea where I can get these? They are an impressive way to ship prints, and with a tissue cover inside, a nice way to ship pastels.

Maybe you could ask Mill Pond Press who their supplier is.

Using your description of "four flap envelopes", I used google.com search engine and found this web site:

http://www.conservation-by-design.co...n/photon4.html

You may want to ask your current supplier what the "real" name is of these envelopes, then use that term at a search engine to see what you come up with. These four flap envelopes look to be what you're describing, but the place is in England, so maybe we in America have a different term for these envelopes.

It does look, by the other items the search turned up, that these are geared towards the photo industry. So maybe also asking a local professional grade photo house would be helpful.

Hope this helps!

Linda