Mystery Mark on 1930s Lemonade Set

Hello, just wondered if anyone can identify the mark on this 1930s lemonade set. It is made out of cream earthenware. I have seen similar jugs with Ovaltine adverts on the fronts. The mark looks like AW or FW, but I'm not sure. Thanks

 

The info is on this site:
http://discovery.nationalarchives.gov.uk/details/r/C442386
but it hasn't been digitized. I think you'd have to register in order to gain access. The date is 1935.

 

At the bottom of this site, it says you can email them, but it can't be that easy, can it? http://www.phoenixmasonry.org/masonicmuseum/Dating_English_Registry_Marks.htm

 

Thanks for information about both of these sites - I'll give them a try.

 

Perhaps it is F.A.W.?
Good luck.