10 Lire Potter

San Marino's 1978 coinage program was part of a broader series of annual mint sets that the republic issued primarily for the collector market throughout the 1970s. Circulation of these pieces within San Marino itself was essentially nominal — the economy ran on Italian lire in practice, and San Marino's own coinage functioned more as a revenue mechanism through philatelic and numismatic sales than as working currency.

The "Potter" designation in the series reflects San Marino's thematic approach during this period, dedicating each year's issues to a specific craft or occupation.