Posthumous Neptune as RIC 58 (Caligula)

Marcus Agrippa · Observed / Range

Source location: Book IV Chapter 2 Pricing Schedule

Certified / slabbed evidence

VF sold for ~$317; XF ~$439; AU ~$1,952

Current fixed-price retail

Active ordinary asks roughly ~$159-$204; budget examples can be lower

Raw auction

CNG buyer-inclusive sample median ~$300; middle 50% ~$270-$660

Market / specialist note

Caligula posthumous issue retained.

What affects this price?

Even within one ruler, denomination and type, grade, strike, centering, surfaces, style, patina, rarity, provenance, and tooling or smoothing can materially change value. These are not automatic numeric adjustments.