Galba (68-69 A.D.) - Orichalcum Dupondius - 25mm, 20.70g
Obverse - SER GALBA IMP CAES AVG TR P
Galba, his laureate and draped bust right
Reverse - SPQR OB CIV SER
Legend in 3 lines within oak-wreath.
The image below was photographed by Mark Lehman. The image above is my own scan.

Minted in Rome between ca. June 68 and August 68 A.D.

The reverse legend SPQR OB CIV SER is an acronym for
SENATVS POPVLUSQVE ROMANORVM OB CIVES SERVATOS
Which can be translated as "(Awarded) by the Senate and the people of Rome for having served the citizens".
The "Corona Civica", the civic oak-wreath, was initially awarded to individuals for rescuing a comrade in battle,
but in the case of Emperors, it became part of their honors upon ascension, thanking them for rescuing the populous
from the chaos of civil war, or for defeating a (sometimes imaginary) foe that was considered to be a public threat.

Reference:
Sutherland, C.H.V, "Roman Imperial Coinage", Volume 1, revised edition (RIC), p246, nr. 290. (obverse 16Fa)
Sear, D.R., "Roman Coins and their Values" (RCV Millennium Edition), Vol. 1, p413, nr. 2130 var. obverse legend.
Mattingly, H., "Coins of the Roman Empire in the British Museum", Volume 1 (BMC), p331, nr. 135-4, note ++
Cohen, H, "Descriptions Historique des Monnaies frappees sous l'Empire Romain" (C), Volume 1, p338, nr. 296.
Suarez, R., "Encyclopedia of Roman Imperial Coins II" (ERIC II),  p63, nr.385 (B10, O29, R62, T89, M3)
Suarez, R., "Encyclopedia of Roman Imperial Coins II" (ERIC II-digital),  p57, nr.385 (B10, O29, R62, T89, M3)
Van Meter, D., "Handbook of Roman Imperial Coins" (VM), p93, nr. 56 var with ol/6a.

Quality: Good+/Fine-
Rarity: S (Scarce)