feureau.tumblr.com/post/66084270941/
feureau.tumblr.com/post/66091152247/
feureau.tumblr.com/post/66112458324/
feureau.tumblr.com/post/66126577899/
feureau.tumblr.com/post/66141219877/
The way they void the sample stamps on the USPS website seems