I collected my 'new' machine this afternoon and have been
playing familiarising myself with her since.
One of 15,000 released in May 1957 it's in pretty good shape. A bit of fluff around the bobbin and feed dog area and feels a bit dry and so has had a good dose of oil. It doesn't run quite as smoothly as my 1949 model - which is maybe too easy it tends to run-on a bit after the pedal is released. I don't think this one has had anything near as much use as the older one.
It came with a pretty standard box of accessories:
Ruffler, hemmer, edge stitcher, gathering/shirring foot, hemmer foot, binder foot, under-braider and 3 metal screwdrivers and a stiletto. Also a separate zipper/piping foot, 10 bobbins, 2 guides for attaching to small scissors guide for cutting binding strips (methinks a rotary cutter and acrylic ruler is better!) assorted needles and a spool of shirring elastic - but no 201 instruction book! And no 1/8" markings on the needle plate
Also included was a Stoppax hemstitch fork and a Stoppax darner attachment - I've never seen one of those before but it makes any foot bounce up and down for free motion or can be twisted round and out of use. Fiddly to attach but can be left in place for regular sewing. An expensive little bit of coiled metal - in 1955 when purchase tax increased it went up to 5 shillings and 6 pence in UK and currently
https://singer-featherweight.com have sold out and they were charging nearly 35 US dollars!
There is also something which I think is a zig-zagger, but it doesn't have a Simanco number, it just says 'Made in Japan'.
All in all not bad for £30. Worth that for the attachments alone.