You have a Singer 9W or 9W7 which were made from roughly 1908-1913 in Bridgeport, Conn. No existing SN# records from Bridgeport factory. Singer bought out Wheeler & Wilson in late 1905. Your 9W uses the Featherweight bobbins. Needles are 127x1 which are not made anymore but available as new old stock. MY1014 industrial needle is a sub. The Singer 9W is very much like the W&W D9 except it has Singer decals and fits Singer cabinets. This is Singers first Rotary machine.
Jon