Trajan, Rome mint, 114-117 AD.,
Æ Dupondius (25-27 mm / 12,34 g),
Obv.: IMP CAES NER TRAIANO OPTIMO AVG GER DAC PARTHICO PM TRP COS VI PP , radiate bust of Trajan right, wearing aegis; small globe below.
Rev.: PROVIDENTIA AVGVSTI SPQR / S - C , Providentia standing left, resting elbow on column and pointing to globe at her feet.
cf. RIC II, 291, 664-5 (unlisted bust type) ; cf. Coh. 321-2 .
Curtis Clay: "Strack 471 reports this bust type with aegis, coupled with this rev. type on dupondii, on two specimens, Vatican and Naples.
I don't know whether those coins also have the globe under the bust. They might, but it was struck off flan so Strack couldn't see it, or it's visible but Strack fails to mention it. He does not have a separate bust code letter for busts with the globe, a fact which could easily lead to his failing to report the globe.
Certainly this bust type usually occurs WITHOUT the globe. BMC 1051, pl. 43.3, is an example on a dupondius in the same issue, with rev. type Emperor between two trophies. This bust with bare chest and aegis but without the globe is comparatively common on denarii.
I am inclined to believe that bust types with globe below have so far been reported only on aurei of Trajan. Even there they are the exception, as we can see from the die studies of Trajan's aurei from 103 on by Joel Allen and Martin Beckmann in America Journal of Num. 2000 and 2006. There is one aureus obv. die with globe just like Arminius' dupondius obv. die, and in the same issue, c. 116 AD, illustrated below. Another aureus obv. die of about 114 AD shows a draped and cuirassed bust with a globe under the shoulder, BMC 493, pl. 17.16.
Actually a globe does occur below an exceptional left-facing bust on an earlier denarius obv. die of c. 105 AD, according to BMC 216 note (reportedly in Oxford)."
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