Question from the UK about the age of these pellet tins.
On this one, my guess would be that it is 1935-1939, since there is no "HC" on it. Plus, the print style looks right for that era.
Check out the entire collection
http://www.flickr.com/photos/31228487@N07/sets/72157607964699940/with/3319557821/
Great collection. Great pictures.