There are two plates one on the machine and the other is attached to a small black box mounted inside the table. The previous numbers are from the machine.

[ATTACH=CONFIG]557030[/ATTACH] this is the plate on the machine.

Will post more pics after I can get them.

The black thing there is the motor, and the plate show specs and motor type; the machine serial number is embossed some where in the (presumably) black cast iron body. The black box inside the table I will guess is a a speed controller, likely a knee lever or you might be able to take it out and it's a foot pedal. They were set up with various speed controllers.

Do you see the spool pin at the right on base of the machine in the picture? Right behind it is a flat elongaded part, that's where the serial number is stamped into the cast iron base. Some models have it elsewhere, but it's better to wait until there are any picture.

http://www.instappraisal.com/sites/i...5)%20015_0.jpg

Sorry, I saw mickey's photo and thought it was the questioner.
bk

This White will give you an idea where to look.

fiddle base shows a real Singer ID, but with a maybe confusing bobbin winder and curved base.

[ATTACH=CONFIG]557355[/ATTACH]Finally got those pictures!!

[ATTACH=CONFIG]557357[/ATTACH][ATTACH=CONFIG]557358[/ATTACH][ATTACH=CONFIG]557359[/ATTACH][ATTACH=CONFIG]557360[/ATTACH][ATTACH=CONFIG]557361[/ATTACH][ATTACH=CONFIG]557362[/ATTACH]

Model 66 dated with serial # allocated on July 8, 1930 and in my corner of the desert is worth between $40-75 as pictured. If the controller isn't in a knee bracket, you can lower that to $25-35.