I found a singer 121 sewing machine in a second hand store it works great but I need to find needles. it says inthe book that I need a 1955 singer needle any one know where to order the needles. This machine sews halters for horses and fixes heavy blankets. It is on a large stand with a motor that is mounted on the stand the foot is rasied by a pedal by the knee and the foot peadle is like an old treedle machine foot pedal. E mail me if you know anything about this machine or where I can get the needles