Early Newspaper Articles on Pinking Shears
Incorporation
The Akron Beacon: November 17, 1931
The Cincinnati Enquirer: November 18, 1931
Various Newspapers in Chronological Order
This is the earliest mention of pinking shears I found at newspapers.com. There is also the Newspaper Archive, which I have not investigated.
Evening Star, Washington, DC: September 6, 1931
St. Joseph Gazette: September 13, 1931
The Evening Sun, Baltimore: November 24, 1931
The Des Moines Register: December 21, 1932
Same Listing in Numerous Newspapers
These are just two examples of many identical listings. The 158 Greene Street address no longer exists, but the building is there using a different street number. In Google Streets the building is blocked by a truck. I will have to make a site visit.
Chicago Tribune: December 4, 1932
St. Louis Post Dispatch: December 4, 1932
Brooklyn Daily Eagle
January 4, 1933
January 8, 1933
January 15, 1933
January 22, 1933
March 15, 1933
April 23, 1933
April 26, 1933
May 3, 1933
October 11, 1933
October 15, 1933
October 18, 1933
October 25, 1933
October 29, 1933
November 1, 1933
November 5, 1933
November 8, 1933
And a Price Decrease
The Cinncinnati Enquirer: November 11, 1933