Hello wm
Kovel's on-line price guide lists an item similar to your bottle with the NB & Co embossing as a medicine (patented 1910)
http://pages.kovels.com/55/InventoryPage/1099284/3.html - the 1996 price for your item was $110.
Unfortunately, the website doe not provide any further details on the company.
Cheers,
Dirranbandi