|Subject:||ACE engine no. "S"||Date:||Tue May 24 21:21:11 2016|
My1926 ACE engine no. start "S" and this "S" letter stamp is little smaller than after "E" and four digits no.
I saw several ACE engine no. start by "S".
Does anybody tell me mean of it?
My ACE originaly deriverd to Japan back in 1926.
Thank you from Japan