The design was pretty consistant during the time frame and was a picture of an airplane. The internationally recognized color at the time was red, so most of them are printed in red ink. The stamps were relatively small, but were a horizontal format rather than the more common portrait format of regular mail stamps.
Why don't you just Google "World War 1 Submarines?"
Was
Devastated
like idiots
the shopkeepers in world war 2 had to stamp the ration books to make sure that the person collecting the rations could not collect more.
they look like a piece of paper that saves Canada
in world war one it was light blue and in world war two it was normal blue
World War 1 horses when muddy looks like an muddy horse..
Same as it does now.
I think the stamp act. Not my answer my teachers answer.
Like a nuclear bomb exploded in japan.
like sh@#