Thanks to Christine in Red Bluff, Northern California for this very useful file.
Working here… It does print out legibly.
It’s also available on Victorian Sweat Shop.
Recommended site if you into Vintage Sewing Machines: )
The 400 series Slant-O-Matics are the best, last, Singers IMO.
(They just went plastic & cheap after. And ‘Lost it’.)