Also take note of the shapes of the buildings in the design. The artist was not striving for realism, whatever the actual date of manufacture.
Whether it is truly from 1776 or not, I like the piece. The cityscape is kind of wacky and playful. I haven't seen that kind of approach before.
The guy did forget to use spell check, though. "Leet"? I suppose if people can misspell "lose" as "loose" today, why not.