[Rockhounds] Looking to buy fold up mineral boxes

[hammerron]

I am looking to buy about a hundred of those cardboard/poster board 
trays to hold mineral specimens.  You buy them flat, shaped somewhat 
like a letter "t" and fold them into a box.  I'd be looking for white 
ones that when folded, measure about one and a half by one and a half 
inches.

It's been a long time since I've bought any, and have found a few places 
on line, but was hoping someone on the list can advise me as to a good 
source with better prices. Postage can be painful.


regards


Ron