classic motorcycle forum

Picked up an Ariel Square Four at an estate sale a few weeks ago, and am trying to first figure out what year it is.  Former owner said 1938, but engine codes and frame codes indicate 1948.  Engine code: CJ356, Frame Code: AX1087

Photos of the Ariel can also be seen at:

http://www.renaissancerestorations.com/ariel/arielmotorcycle.htm

I'll probably be looking for parts in the future also

Thanks
J