Italian Post war MTB class. There were some in the class MC-491 Lampo, MC-492 Baleno, MC-493 Freccia and MC-494 Saetta and others
The MC-490Folgore was the prototype and was somewhat different from the rest of the class
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Thank you Kim for the crest
"Never fear to try on something new. Remember that the Titanic was built by professionals, and the Ark by an amateur"