Both are ancient Roman denarii, both are authentic as far as I can tell but cleaned harshly:
Marcus Aurelius as Caesar, AR denarius, Rome. Struck under Antoninus Pius, AVRELIVS CAESAR AVG P II F, bare head right / TR POT III COS II, Minerva standing right, holding spear and resting hand on shield. RIC 444[pius]; RSC 618; Sear 4787 var (tribunal year).
http://www.wildwinds.com/coins/ric/marcus_aurelius/t.html
Trajan Denarius, 98-99 AD. IMP CAES NERVA TRAIAN AVG GERM, laureate bust right, aegis on far shoulder / PONT MAX TR POT COS II, Abundantia seated left on chair formed by crossed cornucopiae, holding sceptre, folds of drapery on her lap. RSC 301a.
http://www.wildwinds.com/coins/ric/trajan/t.html I collect and deal in ancient Roman coin. In case you're looking for affordable ancient coins or need any help with the coins you already have send me a message.
