ArtGirl,
The coin does have value but, as you mentioned, its greatest value may be in its history.
Be patient, others may chime in with a good ID.
Don...
This may be getting close: RIC 656 Domitian, Rome, AE Sestertius, CAESAR AVG F DOMITIANVS COS II, Laureate, draped and cuirassed bust right / S C, Spes advancing left, holding flower and lifting the hem of her skirt.
Oh wow thank you!! I tried looking on coin sites but was overwhelmed with how many there were, how many different, and just could not figure out how to narrow it down. You are awesome!!
I am pretty sure that is a sestertius bronze coin of Hadrian who ruled 117 to 138 AD (one of the Five Good Emperors), and of course, the builder of Hadrian's Wall in England.