Not sure what you call this as it's made from a strip of paper about 10" long and 41/2" wide.
It was folded and sealed along it's width leaving the sides open and unsealed. Folded up it's approximately 41/4" X 21/2"
I'm only assuming it was sent by mail as it's addressed as such but there's no stamp or receiving cancel from Canada.
It has "printed matter" in bold letters on the front not sure if that and the lack of stamp are connected.
Any info of this would be greatly appreciated.
Cheers, Bill



