Bally
Aces Top
Aces Top is exactly the same model as Aces High, project-date May 1965 and production in August 1965.
Serial-Numbers for both models start with AH.
Production-run of 1275 includes both versions.
It's not known if the change of the name has something to do with specific countries, sample-games or whatever.
All known models so far have been located in Europe. Their Serial-Numbers starting with "AH" like Aces High and not with "AT".
A similar case happened with COSMOS some years later, where the swiss models had to be changed to COSMINT due to swiss copyright-issues.
Maybe this was also the case for ACES HIGH and ACES TOP.
It's also possible that the name was changed because it sounded too much as some kind of "Gambling-Device" since there were very different Anti-Gambling-Laws all over Europe
The Name ACES TOP does not appear in Bally-Parts-Lists, so maybe the glasses were changed in Europe.