You have 
This may have light edgewear but has never been used.Also at the bottom across the word Niagara there is a tiny red mark. (I also just found a tiny crease in the upper left corner but it's hard to tell). There will be more postcards added daily or as I can, including some from Germany. The back reads:
Niagara Falls, Canada
Close-up view of the American Falls
The number under the tree is DT-43639-D
This will be shipped in between cardboard or a photo mailer, which may cost a little more.
SHIPPING:
Shipping will be $2.00 which will include delivery confirmation and will be shipped media mail. For multiple purchases I will weigh the item to give you a cheaper shipping price. I usually ship international with Global Priority or First Class International.
OTHER NOTES:
Please email me with any questions. Thanks for looking!