Dropped by "protesters" (looters/arsonists) in Portland?? You decide.

Someone posted that this was dropped by looters in Portland.  Is it authentic, or could it be a fake, created by eeebil gruberment disinformation operatives to try to tarnish Antifa?

If you've studied Leftist/Antifa websites, about all you can say is if it's a fake, it's exactly what these morons believe.