Watch List notes:

The Roman Empire

Trajan Decius, 249 – 251. Aureus 249-251, AV 4.45 g. IMP C M Q TRAIANVS DECIVS AVG Laureate and cuirassed bust r., with slight drapery. Rev. ADVENTVS AVG Emperor on horseback l., raising r. hand and holding short sceptre. C 3. RIC 10a. Calicó 3283a.
In an exceptional state of preservation. A hairline flan-crack on obverse,
otherwise virtually as struck and almost Fdc

Provenance
Trau Collection, sold by Adolph Hess with Gilhofer und Ranschburg, auction, Vienna, 22 May 1935 ff., lot 2777. Sold for 105 Schillings.
Sold by Numismatica Genevensis SA, Geneva, auction 4, 11 December 2006, lot 219.