I just found a pretty rare Australian Big Bambu printers proof cover on Ebay.It's a blue single color proof which is set with the wrong rotation of the pannels,I guess that means it could be collectiable.Anyway,it's up for sale on Ebay with a starting bid of $51.53 and the auction ends 11/19.It's item #370688996561.Take a look for yourself,I've attached a picture
