Reason I ask is I've just got a 1689 1/2 crown, its weight is apparently 16.80 and mine weighs 16.22, everything else checks out like the size and the metal seems silver. Ice cube test seems to check out. Maybe back then the metal weight tolerances weren't so perfect so would explain a loss
I'm sure metal density, softness and depth of design play a role. For example, I've always found it interesting, how much of the liberty on the 1917 standing liberty quarter can be worn away and the coin still manages to be reputably graded at XF.
Not sure, but ... Obviously, it depends upon whether it's a honkin' big Silver Dollar, or whether it's a wafer-thin dime, right? ... oh, I guess you're asking specifically for a 1/2 crown?
Are you trying to tell us that size matters? The average would probably have to be expressed as a percentage in order for size not to play a role, ...I think. mark240590, show us some pictures.
Good question . I think Doug would know this one . I do know Spanish coins of that time were held to strict tolerances as I imagine English coins were too .
It probably just counts as VG if it fits to it atall, i don't really know much about grading this low end I normally hang around F-XF