Katastrofy1967,
I have a Singer Slant Needle sewing machine (Slant-O-Matic 600) in the cabinet with all the parts including the manual. It uses just regular Singer needles. If you are needing the whole manual I will have to take some time to scan all the pages. about 52 pgs. Let me know if you still need this.
This machine was my birthday present in 1964. It has been through 3 different people & is now back home with me & still works great.