Denier 'Provisino' - Roman Senate

The provisino del senato was Rome's municipal coinage, issued under the authority of the Senate rather than any pope — a pointed institutional distinction in a city where temporal and ecclesiastical power were in perpetual contest. By the 1300s, the type had been struck in more or less the same form for well over a century, making it one of the longer-lived medieval Italian coin designs. The billon content degraded progressively across that span, and later examples like those catalogued under MIR 167 are often noticeably baser than earlier issues.