I'll go first.I don't have time today to look up the second and third but the first one is Herennia Etruscilla wife of Trajan Decius 249-251 http://www.wildwinds.com/coins/sear/s2731.html I know you'll find this almost impossible to believe,but I seem to have the same(ish) coin except your Pudicitia is seated...hmm.
OK..I'm back.I can't ID the second coin because of the darkness of your photo and the condition but I believe your third one is Greek c.200BC from Thrace,Odessos on the west coast of the Black Sea (now Bulgaria).It should measure 22mm. The obverse is the head of Zeus and the reverse is a horseman on high prancing horse. Here is a pic of a similar one.There are other examples showing the horseman throwing a spear or javelin and I think that could be what yours is. Next morning: I can't help thinking your second coin is a Thrace,Maroneia "prancing horse" c.400BC like the ones Bone and I have posted in the past.The horse looks identical in design with high head,tail and flanks,but yours is struck offset so the monogram that should be below the horse could be missing...just a guess. The second best guess is that it's from Carthage,another region that put beautiful prancing horses on many of their coins... http://www.wildwinds.com/coins/greece/zeugitana/carthage/t.html see if you can match it.:smile
Hello, I think I have a Herennia Etruscilla antoninianus, with a seated Pudicita on reverse ; here it is : Cucumbor
Her full name was Annia Cupressenia Herennia Etruscilla,a name every bit as beautiful as she was Very little is known about her.To me,the name Etruscilla probably indicates she was of Etruscan ancestry and as you may know,they were sort of predecessors to the Romans who eventually absorbed them into their empire.http://www.mysteriousetruscans.com/