First use of the name ‘Acedes’

[Old Crock]

S F Edge registered the name of the company as AC (Acedes) Cars Ltd in 1927 when he acquired total control. I see some earlier AC cars of the 1920’s are sometimes called Acedes (e.g. by owners, cars for sale, and even the ACOC register) but is this actually correct?
   
   I can’t find the use of the name Acedes by AC in any literature prior to 1927. Can anyone advise please?
   
   Many thanks