AFAIK you are correct that Morgan are the first company to be allowed to put their logo on the engine itself.
In terms of Aero 8s built, iirc MMC are up to approximately 680's as of August this year. Break that down over 8 years and the production is sub 100 a year.
This thread will help illustrate the changes from S1 to S2, etc Again, iirc, the 500-numbers were pulled from the Aero run to be used for the AeroMax, so true Aero 8s are still in the 500s for world production number.
