Bust to left. In legend PON. MAX. is for abbreviation pontifex maximus and A.XXI is the abbreviation for year (Y) and the year of reign XXI in Roman numerals.
Obverse script
Latin
Obverse lettering
PIVS·IX·PON· MAX·A·XXI (Translation: Pius 9th Supreme Pontiff Year 21)
Reverse description
Value and date within wreath. Abbreviation CMI is for centesimi.
Reverse script
Latin
Reverse lettering
*STATO*PONTIFICIO*
10 SOLDI
1867
50 CMI
R (Translation: Papal State 50 cents)
Edge
Reeded
Mint
R Rome, Italy (476-date)
Mintage
1866 R - A. XXI - 291 916 1867 R - A. XXI - 4 402 082 1867 R - A. XXII - 1868 R - A. XXII - 8 203 846