Thanks for the info, Rodney! Mine has nothing cast into the base, just a C39-77287 serial number. Is yours a left homing machine? I need to get a presser foot, as something is clearly out of whack with the zipper foot it came with, and I'm just casting in the dark trying to order the proper thing. I'll look up a generic manual now, as Miriam suggested. Hopefully that will set me on the right track!