I'm having a hard time placing this pair. I'm not sure if its Scott #20 from Italy or Scott #13 from Sardinia. The Italian postmark from Torino (Turin) leads me to believe Italy, but the Italian stamp should have 11.5 X 12 perfs and these are imperf. If the stamps originated from Sardinia with Scott #13 being imperf, why does it have a Torino postmark...I can't find a Torino in Sardinia. Any help with the identification would be appreciated.