Yes, the lack of a
mint mark,
monogram, or symbol is unusual. So is the fact that the royal title reads down on the right
side and Alexander's name reads down on the left
side.
One thing we don't know about this coin is the size and
weight. I'm assuming it is a
tetradrachm.
On page 652 (
vol. 2),
Price lists 12 tetradrachms that do not have
mint marks,
monograms, or
symbols. Only 3 of these 12 coins have the royal title on them: Barbarous B6 (illustrated - the title reads up on the left
side, following the curve of the coin), Black Sea 1321 (not illustrated), and
Sinope(?) 1275A (not illustrated).
Five tetradrachms of
Sinope are illustrated (#1255-58, 1276). Numbers 1256, 1257, 1258, and 1276 have the legends on the
reverse arranged the way they are on the coin under discussion here. (These five coins also have other
monograms and
symbols on them.) Since #1275A does not have any
mint mark,
monogram, or
symbols on it, and other coins from
Sinope have the words arranged as they are on this coin, it could be #1275A attributed to
Sinope(?). By putting a question mark (?) after
Sinope,
Price indicates
attribution is not definite. It would be nice if
Price recorded the position of the individual words -- royal title, name -- but he does not. So this is as far as I can go with this coin in
Price.