Roycroft East Aurora, New York State., United States. Metalworkers and other Arts & Crafts Known dates: Founded by Elbert Hubbard in 1898 (d.1915). Run by Bert Hubbard 1915 - 1938. Reference: WikipediaRoycrofter
The top mark is Roycroft which is based on a medieval mark used by monks at the end of their work. The lower mark belongs to the actual artisan maker Karl Kipp.