Class 301 Survey Results
There are 7 model 301s in the survey.
According to the Singer 800 number, 301s with serial number NA018250 - NA196408 were all reportedly manufactured on 5/29/51; the first three (NA018250 - NA085869) are model 301s. While NA196408 - NA493524 (4 machines) are 301As, the latter three manufactured between 1953 - 1959 (Singer wont give a specific date or year).
The most notable thing about the 301 is the metal handle that folds flat into the top of the arm. The 301s have the same bobbin and bobbin case as the FW (221), round, side loading under the fold up extension bed, also like the FW. The fold up bed is either short 2 3/4 inches or long 5 1/2 inches.
During bobbin winding the thread goes through tension discs on the bottom right side in 6 of the 7 surveyed machines. The thread went through (around) a cleat on the bottom right side on the other machine.
Five machines are black and two are tan, and all the machines have shiny finishes.
All the balance wheels are solid and the same color as the machine. The face plates are also the same color as the machine. They are shaped to go around the left end of the machine and hinged on the back side so it swings open to the left (like removing the face plate on older machines). There is no plate on the back right side of the machine.
The stitch length adjuster is a narrower thumb screw in a rectangular-shaped, numbered plate on the right side.
The 301 can go in reverse, but does not have a zigzag stitch. The upper thread tension is numbered on the front left side. The decals are described as deco, like old FW, like interlocking paperclips, minimal, and none.
It has the large 1-5/8 inch Singer medallion. The head measures 13.5 inches from the face plate to the balance wheel. The bed measures 13.5 inches (not including folding extension bed) by 7 inches.
The 301 is a slant needle machine. A light is built into the front of the machine with SINGER in gold letters in the center. The spool pin is in the back on the right side. It has a second spool pin on the bottom right side for winding another bobbin while sewing. The feed dogs may also be dropped.
Five of the 301s are portables. Three of the cases are described as tan with brown trim and side opening (like a suitcase). Two of the machines are built into cabinets in which the machine folds down into the cabinet and a split tabletop closes over the machine. The needle is threaded from right to left.
Class 301 pictures and additional information can be found at ISMACS International.