Be interesting to see the serial number. It looks exactly like my 1952 model 128. I paid $35 for the machine and a rather beat up case - it will look better after Christmas when I have time to devote to it. No attachments with mine.
Go for it. Billy (lostn51), one of the vintage machine gurus, says they are desirable machines. Did you notice the lack of chrome and the flatter finish? The materials were needed for the armed forces in the Korean conflict, so Singer used different materials and processes.