9. Punch marks on reverse of ancient coins 876

Fig. 1. Coin from Lydia. Electrum. Reverse. Oblong sinking

between two squares. Babylonic stater. The earliest known

coinage. Circa B. C. 700.

2. Phenician half stater. Electrum. Reverse. Incuse square

with cruciform ornament.

3. Silver coin of Teos. Reverse. Incuse square. Circa 544

B. C.