Korea - 100 Mun 1866 SEED coin

August 2026

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Well, it's sure built like a seed coin, very fine detail and slightly larger. Besides suffering some corrosion the basic piece has a fissure/ sand hole that should have kept if from being used as a seed coin. My only explanation is that it might have been rejected as a seed coin and somehow avoided the re-melting pot.
This coin was purchased from Frank Robinson, the well known collector/dealer of Asian coins. KM# 1435; 40 mm.
In this photo has the Obverse/Reverse images are flipped.

Sang P'yong T'ong Bo, Hojo Treasury Department
Korea, ca 1866. Obverse Image: Four Chinese characters read top, bottom, right, left Obverse Text: Romanization: SANG / P'YONG / T'ONG / BO (Translation: Always Even Currency). Reverse Image: Character for Hojo Treasury Department at top, denomination read right, left, bottom. Reverse Text: Romanization: HO / TANG / BAE / CHON (Translation: Character for Hojo Treasury Department, worth one hundred).

VIEW & DOWNLOAD Korean Coin and Charm Articles:
A Survey of Korean Coins - Joseph E. Boling: [ link ]
Korean Charms and Amulets - Starr
[ link ]
German Coin Techniques in Korea - Won Yu-Han
[ link ]
Rulers of Korea
[ link ]
Picture Album of 100 Korean Amulets
[ link ]