I think this is the most monochrome I could have gone for today... thanks to George Washington, Benjamin Franklin and Abraham Lincoln, featured on this set of 6 stamps issued in 2016 and thanks to Bryon for his long-lasting partnership in "mail crimes" :))
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At Sunday Stamps you can see more monochromatic beauties.
This post first appeared on Let Me Take You On A Philatelic Trip......, please read the originial post: here