Carl Damschinsky was in the Hair Dyeing business at least as early as 1890 in New York City. In 1891, his business address was at 226 E. 36th Street. He had his name registered as a trademark in 1891 (#20,343). The same year, he registered the word "Pilocrescin" as a trademark for a "Hair Restorative" (TM #20,356). He claimed on both trademark Petitions, that he was just starting to use the brand names. The Trade Mark Petition for the Hair Dye also included a sample label (view).
From 1900 to 1930, his business was at 142 E. 34th. The Hair Dye was listed in the 1922 Montgomery Ward's Catalog. At that time, there was a 10 ounce, and a 2 ounce bottle. According to Fike, the business was still active in 1948. Devner indicated that Damschinsky also marketed a product called: "Blondine." So far, I've only seen the bottle for the Dye.
The box said that not only was the product proven safe (view) but it also included instructions in ten languages including Hebrew (view).