Denmark
Gluckstadt Christian V 4 Mark Danske (Krone) 1671, KM63, D-36678 variety (3633A on slab), VF30 PCGS. While several varieties of this type exist, it is most similar to D-3678. Crowned, plain monogram with crowned Danish arms. Desirable darkened-patina on a broad example. Full of interest with strong legends and very few distractions for a piece of this age. Krause catalog price(s) for this item: $360 in VF.
Estimate: 400-600 USD