Keywords: MID37599, SMID39515, Dioskouroi/Castores 134, II. 3.c. Initiation 159, V. 2.a. Kultpersonal röm 275, V. 2.b. Kultinstrumente 1685, mosaic, black and white, Roman, opus tessellatum, 240/260, OstiaMithraeum of Felicissimus, Italy, Ostia, Reg. V, Is. IX, 1, Mitreo di Felicissimo, kerykeion, caduceus, altar, sword, krater, thunderbolt, lightning, ladder, helmet, tankard, skyphos, kotyle, scyphus, spear, torch, cup, diadem, raven, star, staff, sistrum, initiation, lamp, mysteries of Mithras, initiated, pilos, halo, nimbus, sickle, Phrygian cap, scythe, Dioskouroi/Castores, Helios/Sol, Isis, Hermes/Mercurius, Osiris, Saturnus, Luna, Aphrodite/Venus, Zeus/Iuppiter, Cautes, Cautopates