A variant casing for a previously known Period 2 Oscillator Rotor (top line) has been found by Ian Osgood (middle line). dgreene then noticed that one or both of the outside diagonal rotor bit-pairs can be suppressed, giving two more new Period 2 Rotors. The 6 bit Rotor (31P2) is a new Rotor, while the smaller object is just a previously unknown casing.
