Schwabacher 9 (O3/R9) 17.45 g Numismatica Ars Classica AG, Auction 13 (1998) no. 407 SNG Lockett 361 (this coin) 17.45 g NAC 13 407 17.44 g Tkalec 1996 10 See die-coupling tetradrachms (Schwabacher 1-45)