Attached is a PDF file about Helmetta and Helme snuff.  

This link contains videos about Helme, Helmetta, and the Snuff Mills.  

http://www.youtube.com/results?search_query=Helme+snuff+mill&oq=Helme+snuff+mill&aq=f&aqi=&aql=&gs_sm=3&gs_upl=2423l4964l0l5178l16l16l0l10l10l0l301l638l1.0.1.1l3l0