Street fair wooden photo holder??

Hello All,
I am doing another book and photo fair in Oct. and am looking for the wooden holders that I see matted photo's being held in. They are X shaped when folded out and numerous matted prints can be held in them. They are also floor model size, but would take table top.,
I mainly want this so I can have a place other than the display to store photo's for people to look through.
Thanks for reading this ramble I hope it makes sense
Arthur