The first two roadsigns clearly belong to the Russian Group (found all over
the former Sovjet block, see f.e.
Lithuania or, why not,
Russia).
The specimen in the center is also present in
Armenia (Giumri, 2001).
The third sign, slightly less weathered, belongs to the UK-group of signs.
Members of this group are found dispersed all over the world (e.g.
Iran).