Montenegro
Nicholas I Specimen Essai 10 Para 1915 SP67 PCGS, Paris mint, KM-Pn3. An astounding example of this rare Essai, preserved essentially as the day it was struck with needle-sharp detail and just a whisper of toning across the surfaces. This is the finest (and only) example of this type currently certified at PCGS with a single MS65 in the census at NGC.
HID02901242017
Estimate: 3000-5000 USD