old Italian traffic sign for stop and give the right of way.Please pay attention that the dimensions of the original sign was 900 mm instead of 600 mm (in the medium size version) like others circular Italian signs.
a picture of the original sign
http://www.codicestradainfantino.it/segnali/tii2.gif
Based on File:Italian traffic signs - fermarsi e dare precedenza - stop.svg
F l a n k e r