Trying To Identify Ancient Roman Coin

Well, looks like an obverse legend that might read IMP CAES VESP AVG P M T P COS IIII CENS, and I see a standing figure with cornucopia on the reverse...that might be Felicitas. So perhaps a Vespasian dupondius.

First off, welcome.

No doubt that's supposed to be Vespasian. Possibly RIC 581?

The two cavities on the obverse (at about 4 & 6 o'clock) intrigue me. They look rather like test bores. Maybe a base metal coin that at some point was trying to be passed off as a gold piece?

I second Lucky's Ric 581.

RIC - "Roman Imperial Coinage, abbreviated RIC, is a British catalogue of Roman Imperial currency, from the time of the Battle of Actium (31 BC) to Late Antiquity in 491 AD. It is the result of many decades of work, from 1923 to 1994, and a successor to the previous 8-volume catalogue compiled by the numismatist Henry Cohen in the 19th Century.[1] [2]

It is the standard work for numismatic identification of coinage struck by authorisation of Roman emperors."

FWIW I found your coin by checking the WildWinds database and searching on Vespasian here: http://www.wildwinds.com/coins/ric/...asian/i.html
Vespasian has a very distinctive face (most of the early emperors do). I then searched on the elements of the string Bob L suggested, "IMP CAES VESP AVG P M T P COS IIII CENS" and looked for a bust facing left. You can also see the radiated crown on his head.

Wildwinds is one of my go-to resources for coin ID.

If you have the ability to analyze metals, then you have found the right hobby. Metallurgy plays a crucial role, particularly with silver coinage which was regularly debased. It can also help with authentication since most modern fakes use purer metals than the ancients had access to.