Italy postal cover with 2 stamps.On the left 5 lire Expresso red stamp issued 1945.On the right 25 cents green stamp issued in 1944 with o/p 2 lire and poste italiane.Have not been able to trace the o/p stamp in the net.Need to know why the need to over print Poste Italiane on an Italian stamp?.All details and opinions appreciated.Thanks.

Closer view of the o/p stamp.
