Annulets... IMP CAESAR VESPAS AVG COS V TR PPP Laureate head right CONCORDIA AVG Concordia seated left, annulet below, star in Exergue 3.41g Ephesus 74 AD RIC 1464 (R2) Rare Ex-Calgary coin about XF
And another "O" mint CAESAR AVG F DOMITIANVS laureate head right, small 'o' below neck truncation PON MAX TR P COS IIII winged caduceus. Uncertain eastern "O" mint 76 AD 3.24g RIC II 1496 (R2); BMCRE II, 489; RSC II, 369; RPC II, 1469. Apart from the COS IIII, these titles are appropriate for Vespasian, not Domitian as Caesar