Was a kingdom on the Atlantic coast of Spain that traded with the Greeks and Phoenicians a fezzan b tartessos c elche d etrona?

Tartessos

5its 4

This looks like two series interspered with each other. Let's put some letters in upper-case and others in lower-case BaCbDcEdF... so the next letter would be the lower-case 'e'

And how does this relate to coins?

05 REM BASIC code 10 CLS: G$ = "a b c d e " 20 FOR N = 0 to 8 STEP 2 30 PRINT MID$(G$, 1, 10 - N); : PRINT 40 NEXT N 50 PRINT: PRINT "Bowie, Zatman, that was fun!" 60 PRINT: END <?php // PHP code...