Italian road sign: obstacel marker for obstacles inside the carriageway; if put at the beginning of a traffic island the marker is combined with mandatory sign "keep left/right". Picture 8 of ministerial circular N. 1250 of 1981.
Circolare Ministero Lavori pubblici  n. 1520 del 28 settembre 1981 "Delineatori stradali"
Original:  Ministero dei Lavori Pubblici

Vectorization:  Earthshaker13