Auto Knitter or Money Maker v-cam

Marked 400 on the base
Serial # 38760 ? can't quite make out if it's a 6

Looks like a Creelman/Legare tappet plate, but rather than being marked MMA, it's marked IMM or 1MM

Notice the timing screws on the cam ring.

Has the 403-1 on the crank handle

Closer view of V-cam.