I'm guessing that it is a typo as to model number and believe it might be a
15. From what I've read it would be a reproduction machine made in the 1970s or 1980s in Taiwan. It probably has a feed dog lowering knob on the bed of the machine.
Scroll down to near the bottom of the page for info regarding the 15NL machines
https://www.singersewinginfo.co.uk/15/
A thread here on QB about the 15NL
My New Sewing Machine a Singer 15 NL
and another rather informative thread about 15NL
https://danhopgood.wordpress.com/201...old-beats-new/
Janey - Neat people never make the exciting discoveries I do.
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