This note concerns an enigmatic rendition of the mint signature on some groats, halfgroats and pennies issued under Robert II. On these coins the signature of VILLA DE PERTH is rendered as VILLA ED PERTH. This latter legend has been attributed to die-sinker error, born of familiarity with producing VILLA EDINBURGH mint signatures. The representation of this anomaly across three denominations, involving multiple dies and many coins, suggests that the ED PERTH reading may have been intentional.