After reading about all the neat old Singers on here, I got curious about my Mom's old machine. I took a look at it today and found out that it was made in 1955 in Elizabeth, NJ. Serial number is AL984970 and it seems to be a model 15. I'm curious how I go about getting a replacement owners manual? I checked the Singer website but must not be doing something right about ordering the manual. Were all manuals for model 15 the same? Thanks for all your information!!!