Obverse: in the center of the obverse is the episode of the royal wedding of Constantine and Anne-Marie. Around the minted coin is the inscription in Greek 'ΚΩΝϹΤΑΝΤῖNOϹ - ἌΝΑ ΜΑΡΙΑ ΒΑϹΙΛΕῖϹ ΤῶΝ ἙΛΛΉΝΩΝ' (lit. 'Constantine, Anna Maria, Kings of Greece')
Reverse: the reverse of the coin shows a crowned double-headed eagle and the denomination '30 ΔΡχ.'.
About the coin: this is a 30-silver drachmai coin issued in 1964 to commemorate the royal wedding of King Constantine II of Greece and Princess Anne-Marie of Denmark. The coin was issued by the National Bank of Greece.