A great example of the earliest known (1924) New York Mouthpiece mouthpiece packaging used when shipping to customers.
Postmaster: return if not delivered to
Vincent Bach Corp.
237 East 41st Street
New York City, U.S.A
In this mouthpiece box, was a Vincent Bach Corp. 5A mouthpiece. While it can not be confirmed as the same from 1924, the markings would indicate it was from the same time period.
source: eBay, April 2014