Rainer,
Of the four
IMP II Rome mint denarii of Septimius listed by RIC,
RIC 26, GENIVS P R does not exist, but is just a misreading of BM 59, pl. 6.19, as stated in a footnote in the revised edition of
BMC V, "the last two digits are blurred", so it's an
IMP IIII.
The other three do exist:
RIC 27,
LIBERAL AVG COS, citing L.A.
Lawrence collection. That
Lawrence coin is now in BM. Another was in the
Eauze hoard, no. 75, pl. 9, and I have three further specimens in my new
collection.
RIC 27A,
LIBERO PATRI, citing
Cahn, 15 Oct. 1929, lot 671, and also BM 60, pl. 6.20 = RIC pl. 5.9.
BMC new ed. casts doubt on the
IMP II reading on their coin; the same
type occurs also with
IMP III and IIII. However, I have plaster casts of three examples which clearly read
IMP II: in
Budapest,
Vienna, and
ANS.
RIC 29A,
VICT AVG TR P II
COS II P P advancing l., citing L.A.
Lawrence coll. That
Lawrence coin is now in BM, you and
Martin show additional examples above, and I have two in my new
collection.
Four more
types that exist, but are
not in RIC:
As RIC 29A, but
Victory advancing right.
Martin shows
his specimen above, the BM has one from my first
collection, I have two more in my new
collection, and another is in Naples.
The
Virtus standing
type, shown by Lerian above. Other spec. are in
Oxford,
Walker Bequest, ex
Lanz 42, 1987, lot 585; and two in my new coll.
SAEC FRVGIF COS, African god standing. Rupert showed such a
denarius in
Forum in
Dec. 2008, acquired a couple of years earlier. Since then I have added two spec. to my new
collection.
VICT AVG TR P COS, advancing left. A spec. is in the coll. of the Göttweig Monastery in
Austria,
RSC cites one reported in the
BMC first ed. from a British
hoard, and I acquired a spec. some years ago from a Münzzentrum Rheinland sale, lot 679.