merclover - yes, the raw coin (bottom coin; #2) was advertised as "AU58 FB". The PCGS coin was not advertised as full bands and PCGS only designates as such at MS60 and above.
This PCGS article defines
their definition of "full bands":
"
Although the central bands must be fully separated with no interruption, it is not necessary to have full roundness to the bands - the so-called "McDonald's Arches" that are sometimes referred to as Full Split or Full Rounded Bands."
https://www.PCGS.com/news/mercury-d...h-full-bands