And here's a rough babel.altavista.com translation of the Italian paragraph as seen on the above postcard's website (click the postcard above to link to the website):
The beautifulst mosque that it has never seen. Gold and turchese on a structure to square plant around which the city of Mazar-i-sharif rises. Roads that dipartono from the mosque ripetendone the simmetria. A total market divided for roads and fields, where merchants who do not know the concept of the competition, sell the same manufatti goodses and created with one archaic technology. Outside the sabbioso desert, flat, made red-hot from the sun, of which the wind you ne it remembers costantememte the existence. E' the tomba of Alì, the brother-in-law of Maometto, the prophet of the Sciti.