View source for 21154 - Syracuse (tetradrachm biga/Arethusa) over Catana (biga/Apollo) (Leu 1967 - Garraffo 1984, pl. XVIII, 15)

{{Overstrike
|Image overstriking coin=Syracuse_over_Catana_Leu.jpg
|Image overstruck variety visible on the overstriking coin=Catana Quadriga Apollo.jpg
|Sale=Leu 1967
|Obverse description=Charioteer, holding kentron and reins, driving slow quadriga to right, Nike flying above to right, ketos in exergue
|Reverse legend=ΣΥΡΑΚΟΣΙΩΝ
|Reverse legend language=Greek
|Reverse description=Head of Arethusa to right, wearing sphendone. Four dolphins around
|Mint=Syracuse
|Ancient region=Sicily
|Date from=460 BCE
|Date to=430 BCE
|Period=Classical
|Metal=Silver
|Denomination=tetradrachm
|Standard=Attic
|Coin reference=Garraffo 1984, p. 138, n° 1, pl. XVIII, n° 15
|Coin series reference=Boehringer 1929, n° 585-590 and 592-594 ; Garraffo 1984, p. 138, n° 1, pl. XVIII, n° 15; SNG ANS 5 Sicily, n° 183-192 ; HGC 2, n° 1313
|Coin series web reference=https://greekcoinage.org/iris/id/syracuse.boerhinger_1929.585-590_592-594
|Overstruck obverse description=Slow quadriga r., the driver, wearing long, sleeveless chiton, holding the reins with both hands, kentron in his r. hand.
|Overstruck reverse legend=KATANAI - O-N
|Overstruck reverse legend language=Greek
|Overstruck reverse description=Head of Apollo r., the long hair tied up in a laurel wreath in the back of the head.
|Overstruck mint=Catana
|Overstruck ancient region=Sicily
|Overstruck date from=450 BCE
|Overstruck date to=440 BCE
|Overstruck period=Classical
|Overstruck denomination=tetradrachm
|Overstruck standard=Attic
|Coin series reference overstruck=SNG ANS 4 Sicily, n° 1241
|Frequency of overstrikes=exceptional
|Level of confidence=strong
}}