The basic question is, "When did Paul-Son start to use the Alpha-dot (as some call it) as a security feature on higher denomination chips?"

Secondary question is, "In what order were these two chips manufactured?"

And lastly, do we know the dates (years) that either of these came out?

Thanks,

Jim

This chip does not have an Alpha-dot.

This chip does have an Alpha-dot, just above the 3-chip icon.