Mitsubishi MH15 knitting machine looks like standard-gauge knitting machine with only manual/basic capabilities of patterning/stitch-manipulation.

The machine was very likely made in the 1960s or earlier judging by a screw-on carriage handle an all-metal tool storage box.

The metal feature on the left-hand side in the picture below is the reverse side of the needle selector mini-carriage.

A slightly advanced model is Mitsubishi MH-16, with a more sophisticated/complex needle selector.