Group III Challenge Coin

It is an old military tradition to issue a coin
commemorating an achievement, action, or campaign. At the
birth of modern armies
–
exemplified by Napoleon's devastating war organization
–
most countries provided very few medals for their military.
The obvious reason was that these were usually made of
precious metals and often contained gems as part of their
design, so they were seldom awarded below the position of
commander. Also, since commanders were almost always titled,
having an award made of base metal would have been an
affront to a nobleman. In search of a substitute, in lieu of
medals, coins took their place, and they were either offered
for sale, or a rich commander would buy them for those
deserving of distinction not gallant or meritorious enough
to deserve a rare medal.
The custom endures to this day, and the decision to strike a
coin normally rests with larger unit commanders (group and
above in the USAF). In continuation of this tradition, Group
III will soon issue a "challenge coin"
–
mint proofs of the obverse (heads) shown at left, and
reverse (tails) at right. Around the edge, the following
will be inscribed, separated by small bullets, shown as
(o): TERTIA SEMPER PRIMORIS (o) SEMPER VIGILANS (o) COME
FLY INTO THE BLUE (o). These denote the mottos of Group III,
CAP, and USAF.
The coin is available for sale.