Singer 421 Slant-O-Matic Sewing Machine Instruction Manual.
Includes:
* Threading machine.
* Bobbin winding.
* Thread tension adjustment.
* Needle positions.
* Reverse stitching.
* Two needles.
* Special discs.
* Stitch patterns.
* Zipper insertion.
* Seam guide.
* Button sewing.
* Zigzag stitching.
* Thread shank.
* Stitch length regulator.
* Light bulb replacement.
* Oiling.
* Cleaning.
* Much more!
100 page complete instruction manual.
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