Photography Question
 

You know when you have a photo taken by a pro and it gets put in an envelope that you can take home and transfer to a frame.
What is that envelope thing called?
I tried searching for photo envelopes but didn't get far.

Envelopes - https://www.google.com/webhp?sourcei...to%20envelopes

Folders - https://www.google.com/webhp?sourcei...vid=2078761250

Unless you mean the plastic kind, which I don't think you do - and I wouldn't reccomend...
You more likely mean cellophane photo sleeves.

They're glassine envelopes... you can put negs or prints in them. Here's a link: http://www.adorama.com/FSGE810500.html for 8x10 envelopes. They do other sizes too. They should be acid-free and thus archival.