Dear Constant,
Good to hear from you, and well spotted!
Generally, car production for most UK manufacturers was stopped by Government edict in 1916 for WWI and by 1940 for WWII.
ACtion Archives for March 2006 and November 2007 show the general pattern of AC Cars production work before, during, and after WWII. Recently acquired copies of Company accounts give some specific clues about the range of items made. Jock Henderson's excellent book 'A History of AC Cars' also has 3 pages on the subject. These will form the basis of a couple of planned Archive articles when further research is complete.
Meanwhile, I would very much appreciate copies of your photos for the Club Archive - to the e-mail shown in ACtion please.
Best regards and good wishes for the New Year,
John