Re: Jeff's Spanish Peseta
- We have with this coin poorly struck design elements (e.g., denticles)
but a very well-struck edge with apparent finning.
This combination could be due to:
1. the coin being struck on a blank.
2. the coin being struck on a planchet with inadequate upset.
3. a chip or defect in the groove in the upset mill, leading to an
inadequately upset section of the planchet's perimeter.
We see a roughly similar appearance in 1985-D dimes, which were
apparently struck on inadequately upset planchets. Peripheral details
and the design rim are poorly expressed or absent, but the edge is
tall, the reeding very strong, and the rim/edge junction sharp.
Sometimes there is a serrated pressure ridge at the rim edge junction,
though no finning per se. The abnormally wide planchets evidently made
for a tight fit in the collar, with very little room for lateral
expansion. The absence or minimal development of a proto-rim on the
planchet interfered with the development of the design rim and
peripheral design elements.
--- In email@example.com, "Jeff"
> Second coin is a Peseta from Spain. Although it appears finned, justto
> the left of the finning is the absence of any rim function.
> The denticles are completely gone in this area, as is the Rim.
> Not sure if either of these falls into that wide collar error spectrum
> you were referring to Mike.