25/04/2024
The 401A, 403A, 404A, 401G, 411G, 500A, 503A, 600E, 603E, & 604E, all of which used the same steel gears and direct drive motor.
This is a 401G circa 1951-1956.
So how do you know if your machine is a "slant needle?" Take a look at it from the needle end. If the needle is straight up and down you have a vertical needle machine. If it angles forward then your machine is a slant needle.