American Pinking Shears: Possibly a Model B
The shears was originally stamped with Progress Pinking Scissors Co. New York. After selling the assets and liabilities to a new company, Sam Briskman had the American Pinking Shears Corp. name etched on the blade.
It is not known what the Model B was. The box states new and improved model, implying that this is improved over the A. These do not cut that smoothly, and the Model C followed very soon after, as these are exceedingly rare.