OMI produced the OMI cryptograph, a cipher machine similar to the more famous German Enigma.
Ōmi Province | Ōmi province | Ōmi | Omi province | OMI cryptograph | Omi Vaidya | Omi Province | Omi-Osun ruins | Omi Osun | Ōmi-Imazu Station | Omi | omi |