1 Mun - Goryeo Haedong Wonbo

Historical Context: The 1 Mun Haedong Wonbo, issued in 1097, marks a pivotal moment in Goryeo Dynasty economic history under King Sukjong (r. 1095-1105). Sukjong actively promoted a monetized economy, moving from barter and foreign coinage. The Haedong Wonbo ("Treasure of the Eastern Sea") was among the earliest official cast bronze coins, signifying Korea's assertion of monetary sovereignty and an attempt to stabilize its internal economy amidst external pressures.

Artistry: While individual engravers are not attributed, the artistic style of the Haedong Wonbo is deeply rooted in contemporary Chinese Song Dynasty numismatic traditions. The obverse features "Haedong Wonbo" (海東元寶) in a robust, clear calligraphic script, read top-bottom, right-left. The reverse is generally blank. The design emphasizes legibility and balanced character presentation, reflecting sophisticated East Asian calligraphic aesthetics within a functional monetary context.

Technical/Grading: As a cast coin, "strike" quality refers to casting precision. High-quality examples exhibit crisp, well-defined characters with strong strokes and clear separation from the field. The central square hole should be cleanly formed. Ideal technical qualities include a uniform planchet, minimal porosity, and a well-centered inscription, indicating skilled foundry work. Less desirable examples show weak characters, off-center casting, or significant flaws.