This 2005-P John Marshall Proof Silver Dollar coin has a strong Deep Cameo appearance, with deeply mirrored fields and heavily frosted devices creating pronounced contrast on both sides.
This example also displays an unusually thick, tapered planchet or rolled-thick planchet variation. The reeded edge is visibly nonuniform, with seller measurements ranging from approximately 2.6 mm to 3.0 mm at different points around the circumference. The coin repeatedly weighed approximately 27.40–27.42 grams, above the published standard weight of 26.73 grams.
The weight, tapered edge profile, and thickness variation are documented in the photographs, including:
27.42-gram coin weight
5.00-gram U.S. nickel scale verification
Caliper shown zeroed before use
Edge readings of approximately 2.6 mm and 3.0 mm
Multiple low-angle photographs showing the tapered reeded edge
The coin has not been examined by a third-party grading service. Therefore, Deep Cameo, rolled-thick planchet, tapered planchet, and possible mint-error terminology describe the coin’s observed appearance and measurements only and are not presented as certified attributions.
Condition:
Raw, uncertified proof coin with deeply reflective fields, strongly frosted devices, and pronounced Deep Cameo–type contrast. Light haze, scattered spots, faint hairlines, and minor handling marks are visible under direct lighting. The coin repeatedly weighs approximately 27.40–27.42 grams and has a visibly tapered, nonuniform reeded edge measuring approximately 2.6–3.0 mm at different points. This may be consistent with an unusually thick or rolled-thick planchet, but no professional mint-error attribution is claimed. Measurement and scale-verification photographs are included. Sold as photographed for collector examination.