$10 1950-A FRN INK SMEAR ERROR - Burning U.S. Treasury Building Mistake Cheap + Cool Ch CU

Some ink smears are the story, but some ink smears create the story!

This well-positioned extraneous ink is smearing off the roof and upper levels of the U.S. Treasury giving the illusion there's smoke and flames billowing from the building on this entirely uncirculated and impressively affordable error.