Stampdesc San Marino, 60c-vio-unissued

desc_issuer: San Marino
desc_denom: 60c
desc_color: vio
desc_unissued: 1

Used by 1 overprinted stamp:
San Marino special delivery 5/30/1923 60c vio ovpt=ESPRESSO oc=blk on=60c-vio-unissued

Description does not match any stamp types!