Welcome jlamere
How great to have a machine that has stayed in the family for so long. I'm glad you are wanting to pass it on to your daughter. Have you looked at
http://www.quiltingboard.com/vintage...v-t167789.html ?
Sewing machine oil is your friend and lots of cotton balls and rags. If you take some of the metal parts off you can use some other products to shine the metal up. As the saying "a word to the wise" goes - take
lots of pictures if you take stuff off to polish up.
It looks like the manual for your machine is probably this one
http://ismacs.net/domestic/manuals/d...ine-manual.pdf
Also the Needlebar site does have a picture of a hand crank with the top tension like yours and the bobbin winder, too
I'm sure someone more more knowledgeable about Domestic machines will give you some more info. I'm pretty sure the serial number is 1222290. The other dates are of the patents and so it would be dated after the last one, but it could be a number of years.
Have fun getting it back into working order.
Janey - Neat people never make the exciting discoveries I do.