There are two types of vintage sewing patterns:
- Those with PRINTED PATTERN markings. Pattern markings are printed “in print” directly onto each pattern piece.
- Those with PERFORATIONS as markings. These patterns don’t contain the same “black and white” pattern markings we’re use to seeing today. Instead pattern markings are symbolized with cutouts of symbols: triangles, circles, notches and ect.
NOTE
Perforations aren’t “standard” across the board on all vintage sewing patterns. They vary by meaning and type from manufacturer to manufacturer. This is why it’s important to have an instruction sheet when working with vintage sewing patterns. Read the instruction sheet of your particular pattern to make sure you understand the meaning of the perforations BEFORE beginning construction.
Helpful Book Resources (useful in learning how to use vintage sewing patterns)
How to Use Vintage Sewing Books (a video)


are seamlines included or need to be added?
Good question. Seam allowances on vintage sewing patterns is extremely important. In fact, some patterns specifically state to follow the seam allowance exactly or the garment design will not work. That said, each sewing pattern manufacturer's seam allowance/requirements are different. You'll need to read the instruction sheet that's included with the pattern to decipher whether or not seam allowances are added to the pattern pieces. And to determine what the seam allowance should be if it’s not automatically part of the pattern piece itself.