A note on the capricorns: they were the emblem of the Fourteenth Legion so only belonged on its standards.
At
Rome, the standards of LEG XIIII generally have the capricorns, while those of all other legions generally don't. However, there were mistakes in both directions: occasionally the standards of XIIII omit the capricorns, and quite a few of the other legions also have one or two
rev. dies where their standards are wrongly ornamented with capricorns.
At "
Emesa", only two legions were commemorated, XIIII and
VIII. The standards of XIIII HAVE capricorns on two
aureus dies,
BMC pl. 15.8 and
Paris, but on
denarii the capricorns were omitted. The
rare denarii of
VIII correctly omit the capricorns.
All Alexandrian
denarii commemorate LEG III and show standards wrongly decorated with capricorns. Apparently this
type was copied from LEG XIIII coins at
Rome, and the engravers didn't realize that the capricorns should be omitted if a different legion was named.
XIIII was far commoner than any other legion on
denarii at
Rome and was the only legion commemorated on
sestertii, because it was stationed at the
provincial capital
Carnuntum and was the first legion to proclaim Septimius emperor. This explains also why it was virtually the only legion commemorated at "
Emesa" and why
Alexandria copied its LEG III
type from
denarii of LEG XIIII at
Rome.