The sign from Santiago stems from Portugal where it was
reported from
Portagem. The drawing is very close to
signs found at several places in Spain and the
Baleares.
Probably only experienced road sign scientists will easily spot that the
the top stones are much wider apart in the Spanish version.
The same design, give or take some slight differences in the shape of
the stones, can be found on other islands of the group. In
São Vicente however, our team stumbled upon a different make.
The two stones in the center are rotated 180 degrees (it's not just a swap of positions; they are upside down also). It looks like it's an endemic!
