I believe your machinevis a VS2 rather than a VS 1. The stitch length knobs is on the pillar, not the bed.
https://ismacs.net/singer_sewing_mac...g_shuttle.html
These Singers take a 15x1 needle, not a 20x1. The needle in your picture is definitely a modern Singer needle. I am not saying you have to use a Singer needles. You can use Groz Beckert, Organ or other brands in Canada.