Zita is looking good! You have a Davis made "New Minnesota A" which Sears only sold from 1909-1913. I'd check the drawers for the front slide plate, bullet shuttle, and bobbins, which were hopefully put away for safe keeping. The bed casting on bottom of machine is marked "A9" or "A10". The A9 uses Davis Long needles and the A10 15x1 standard. You'll really enjoy this once she's up and running.
Jon
Similar Davis manual:
http://www.sil.si.edu/DigitalCollect...f/sil10-37.pdf