Dupondio¹, zecca di Roma, 103-111 d. C.², RIC II 586 (pag. 285), BMC III 905 (pag. 192), Cohen II 573 (pag. 77), indice di rarità "C"

Descrizione sommaria: 
D. IMP CAES NERVAE TRAIANO AVG GER DAC P M TR P COSV P P.³ Traiano, busto radiato a destra.
R. SPQR OPTIMO PRINCIPI.⁴S C a sinistra e a destra nel campo. Trofeo con scudi rotondi ed esagonali alla base.⁵

La ricerca nel web di monete di tipologia identica a quella di figura ha prodotto i seguenti risultati: 

1. http://www.coinarchives.com/a/lotviewer.php?LotID=152834&AucID=182&Lot=739 Auktionshaus H. D. Rauch GmbH Mail Bid Sale 11 Auction date: September 12th, 2006 Lot number: 739 Price realized: 370 EUR (approx. 469 U.S. Dollars as of the auction date) Lot description: Vespasian - Traian RÖMISCH KAISERZEIT Traianus 98-117 Dupondius (14,49 g), Rom 103/111. Av.: IMP CAES NERVAE TRAIANO AVG GER DAC PM TRP COS V PP, links drapierte Büste mit Strahlenkrone rechts. Rv.: SPQR OPTIMO PRINCIP, Trophäe, S-C. RIC:-(586) grüne Patina, minimal korrodiert R vzgl. Estimate: EUR 150.
2. http://www.coinarchives.com/a/lotviewer.php?LotID=64915&AucID=69&Lot=140 Münzen & Medaillen AG Basel > Auction 93 Auction date: December 16th, 2003 Lot number: 140 Price realized: 680 CHF (approx. 540 U.S. Dollars as of the auction date) Lot description: KAISERZEIT TRAJANUS, 98-117. No.: 140 Schätzpreis/Estimate: CHF 850.- d=28 mm Dupondius, 104. IMP CAES NERVAE TRAIANO AVG GER DAC PM TR P COS V P P Kopf mit Strkr. n. r., l. Schulter drap. Rv. SPQR OPTIMO – PRINCIPI / S-C Trophäe. 13,35 g. BMC 192, 906. RIC 285, 586. C. 573. Strack I, 382. Hill 134, 184. Feine braune Patina. Vorzüglich Provenienz: Erworben am 12.3.1912 von E. T. Seltman, London.
3. http://www.wildwinds.com/coins/sear5/s3224.html#RIC_0586 Estimate:  US$ 85 Bronze As of Trajan circa 98 - 117 AD Obverse: Bust Right Reverse: Trophy 12.0 gram  Nice Olive Patina.
4. http://www.wildwinds.com/coins/ric/trajan/RIC_0586.1.jpg Lot: 26   Rome. Ancient. Trajan. AE Dupondius. (RIC 586) Bronze. Grade:AXF 98-117AD, Radiate bust r. wearing aegis/Rev. Military trophy; round and hexagonal shields at base, Est. 175. [L500486] Next Bid: $81.00.
5. http://www.wildwinds.com/coins/ric/trajan/RIC_0586.2.jpg Trajan, AD 98-117. A scarce bronze dupondius attributed as RIC 586. Obverse: Radiate head right with aegis. Legend is IMP CAES NERVAE TRAIANO AVG GER DAC PM TRP COS V PP. Reverse: Trophy with round and hexagonal shields. Legend is SPQR OPTIMO PRINCIPI SC. History: MARCVS VLPIVS TRAIANVS, born near Seville, Spain in 52 to Marcia and Marcus Ulpius Trajanus, pursued a military career and was appointed Governor of Germania Superior by Nerva in 97 shortly before being adopted by him. He became Augustus upon Nerva's death on January 25, 98. Although best known for adding Dacia to the Empire by a series of wars (101-106), he also built many public works and administrated ably. The Empire reached its maximum size in 117 after his Parthian victories (114-117). He died on August 8, 117, was deified, and buried in his monumental column in Rome. Condition: The  coin is in VF condition with a somewhat rough, dark green patina and bronze highlights. There is a pit in the patina on the cheek. Currently $189.50 Oct-14-00.
6. http://www.wildwinds.com/coins/ric/trajan/RIC_0586.3.jpg Lot Number: 61719 Estimate: $125.00 Final Sale Price: $107.80 Denomination: Dupondius Grade: VF mottled green patina Reference: RIC II 586; BMCRE 905; Cohen 573 Trajan. 98-117 AD. Æ Dupondius (13.29 gm). Struck 107 AD. IMP CAES NERVAE TRAIANO AVG GER DAC P M TR P COS V P P, radiate bust right / S P Q R OPTIMO PRINCIPI, S-C across field, trophy; two shields at base. RIC II 586; BMCRE 905; Cohen 573. VF, mottled green patina, scratches from excessive cleaning (underlying metal exposed in areas), spots of corrosion, two small obverse pits. Estimate $125.
7. http://www.wildwinds.com/coins/ric/trajan/RIC_0586.4.jpg Lot Number: 63818 Estimate: $100.00 Final Sale Price: $121.00 Denomination: Dupondius Grade: VF yellow-brown patina Reference: RIC II 586; BMCRE 905; Cohen 573 Trajan. 98-117 AD. Æ Dupondius (11.79 gm). Struck 107 AD. IMP CAES NERVAE TRAIANO AVG GER DAC P M TR P COS V P P, radiate bust right / S P Q R OPTIMO PRINCIPI, S-C across field, trophy; two shields at base. RIC II 586; BMCRE 905; Cohen 573. VF, yellow-brown patina, porous. Estimate $125. Online auction 35 closed August 13, 2001.
8. http://www.wildwinds.com/coins/ric/trajan/RIC_0586.5.jpg Sale: CNG 61, Lot: 1782. Closing Date: Sep 25, 2002. TRAJAN. BID Estimate $400 TRAJAN. 98-117 AD. Æ Dupondius (12.60 gm). Struck 107 AD. Radiate bust right, slight drapery on left shoulder / Trophy; two shields at base. RIC II 586; BMCRE 905; Cohen 573. Good VF, glossy green and brown patina, light scratches in fields. ($400) Copyright © CNG 2002 Developed by DataArt 2002 Lot sold for $350, plus buyers fees.

Un saluto cordiale.
Giulio De Florio
 

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Note:
(1) Traggo dai link di cui sopra e dal data base dell'ANS (American Numismatic Society) le caratteristiche fisiche dei dupondi della tipologia di figura.