China
People's Republic silver "Great Wall" Proof 3.3 Ounce Medal 1984 PR66 Ultra Cameo NGC, Cheng page 26, #2. Mintage: 200. Variety with correct spelling of "Heroes" on the reverse. A stunning cameo coin, with a thin band of blue patina around the peripheries. Minor reverse hairlines define the grade for this very scarce medal.
HID02901242017
Estimate: 1500-2000 USD