Hint: read it from bottom to top, right to left, but still in the order 1-2-3
''Solution'':
It is supposed to say “we love burgers”
Yes? You put ink on the raised letters and press them to a surface and they leave a reversed impression. If you did that with these signs, the letters would be the right way around and the words would read from left to right, top to bottom.
Edit: actually the letters are the right way around on closer look, so it would still be fucked up as a stamp so that theory is wrong. Idfk what’s happening here.