1962 AD., Vatican, John XXIII, Second Ecumenical Council commemorative, Rome mint, 100 Lire, KM 73.

Vatican, John XXIII, Second Ecumenical Council commemorative, engraver: Pietro Giampaoli, Rome mint, 1962 AD.,
100 Lire (ø 27,75 mm / 8,06 g), stainless steel (magnetic), 8,00 g. theor. mint weight, mintage 1.566.000 , axes coin alignment ↑↓ (180°), reeded edge,
Obv.: IOANNES·XXIII·PONT·MAX· / GIAMPAOLI / ANNO·IV , his manteled bust facing left, engraver´s name and Papal year below.
Rev.: CONCILIVM·ŒC·VAT·II·A·MCMLXII·INITVM / CITTA'DEL·VATICANO / L·100 , Pope and Bishops at council meeting, radiant dove above, value below.
KM 73 .

Year / Mintage / Papal and Latin year
1962 / 1.566.000 / AN IV - MCMLXII

http://en.wikipedia.org/wiki/Second_Vatican_Council