Waldes Truarc

Founded by Jindřich Waldes in Prague, the Waldes firm pioneered the use of snap fasteners for dresses in the early 1900s. This met with great success, and they opened factories in Paris, Dresden, Vienna, and Barcelona. They became established in Long Island City, NY in 1919, incorporating as the Waldes Koh-I-Nor, a trademark adopted in 1902 from the famous diamond.

More info at

http://progress-is-fine.blogspot.com/2017/03/vanished-tool-makers-waldes-truarc.html

currently part of Rotoclip

https://www.rotorclip.com/waldes-truarc.php