I'm trying to identify this single symbol hallmark is it old sheffield? Your help would be appreciated. I'm not sure if sheffield marks must have makers name also marked on item. Thank you. http://lh3.ggpht.com/_zY8DZERYqfM/TCD4bIbC7AI/AAAAAAAABBk/Z0wVcgCziIM/s128/IMG_2144.jpg http://lh6.ggpht.com/_...