CIMRM 1697 - Altar of the emperors, Carnuntum, Austria.

From: here.

Found online. From: my own blog.

From: here.

From here: "Fig. 19. Pedestal found at Carnuntum. The gift of Diocletian, Valerius, and Licinius. (T. et M., p. 491.)"

From: Twitter.

From: here.

CIMRM entry

1697.
Altar (H. 1.50 Br. 0.60-0.87 D. 0.385-0.65) the inscription of which was copied for the first time by Pietro de Lama in 1795. Formerly in Graf Traun's Castle, now in the Museum Carnuntinum.
Hormayr, Wien, No. 229; Labus, Ara Hainsb., 9; Arneth, Meilensteine, No. 15; Reichel in AEMO 1895, 196; MMM II 331 No. 227 and fig. 205; Kubitschek, Führer Carn., 25 and fig. 11; Kostbarkeiten C., fig. 47; E. Polaschek in R. K. Donin, Geschichte der bildenden Kunst in Wien I, Wien 1944, 115 and n. 97; E. Swoboda, Carnuntum 1958³, 61ff and Pl. VII. See figs. 438- 439.
The back of the altar is rough; its front bears the inscription No. 1698. On the left side Cautes standing, not cross-legged, with an upraised torch and with three ears in his l.h. On the other side Cautopates with torch downwards. In the top a hole and on the top of the front four small holes.
1698.
CIL III 4413; MMM II No. 367; ISL, 659.
L.H. 0.04-0.06.
D(eo) S(oli) i(nvicto) M(ithrae) / fautori imperii sui / Iovii et Herculii / religiosissimi / Augusti et Caesares / sacrarium / restituerunt.
307 A.D. About the titles Jovii et Herculii etc, W. Seston, Diocletien et la Tetrarchie, I, Guerres et Reformes, Paris 1946, 211ff; other remarks in Carnuntina 1956. E. Polaschek remarks that the inscription is inscribed over a former one, which had been erased ("auf Rasur steht"). Fr. Eichler mentioned that the figures of the two dadophores date from the same period of the first inscription.

I.e. To the unconquered sun-god Mithras, patron/protector/supporter of their imperium; the Joves and Herculeses, the most religious Augustuses and Caesars, have restored the shrine.