A mix of features on coins decribed as "altars". Sometimes the phrase refers to an actual altar, at other times it refers to the altar precinct with panelled doors.
ROME - Altar to descendents/children to come
Crispina, AR Denarius, RIC 281
ROME - Altar to providence (Ara Providentia)
Augustus, AE As, RIC 6
ROME - Altar to Salus (Ara Salutis Augusti)
Domitian, AE As, RIC 224
ROME - Altar to Salus (Ara Salutis Augusti)
ROME - Altar to the Deified Antoninus Pius
Antoninus Pius, AR Denarius, RIC 441a
NICAEA in BITHYNIA - Altar
Julia Domna, AE Assarion, Rec Gen 392
TOMIS in MOESIA INFERIOR - Legionary altar
NICAEA in BITHYNIA - Altar
TOMIS in MOESIA INFERIOR - Legionary altar
Caracalla, AE 27mm, Varbanov (Engl.) -, cf 4933
