20 Sen Uniface pattern

Issuer Japan
Year
Type Coin pattern
Value 20 Sen (0.20 JPY)
Currency Yen (1871-date)
Composition Silver
Weight 4.50 g
Diameter
Thickness
Shape Round
Technique Milled
Orientation
Engraver(s)
In circulation to
Reference(s)
Obverse description Chrysanthemum Flower Seal above, vertical denomination flanked by two phoenix, Paulownia crest bottom flanked by Karakusa sprigs
Obverse script
Obverse lettering


(Translation: Twenty Sen)
Reverse description Blank.
Reverse script
Reverse lettering
Edge
Mint
Mintage ND - -
Numisquare ID 3023639080
Additional information

Historical Context: This 20 Sen uniface pattern coin originates from Japan's Meiji era, circa Meiji 3-4 (1870-1871). Under Emperor Meiji, Japan rapidly modernized after the Meiji Restoration, transitioning from feudalism to a centralized nation. A modern decimal currency system, replacing disparate feudal currencies, was a reform cornerstone. Pattern coins like this represent the experimental phase establishing Japan's new, unified coinage.

Artistry: The design reflects significant Western influence on early Meiji coinage, often guided by foreign experts from the British Royal Mint. While specific engravers are unrecorded, the style combines classical Western numismatic aesthetics with traditional Japanese iconography. A 20 Sen pattern typically features the Imperial Kiri (Paulownia) or Chrysanthemum crest, alongside Japanese denomination characters. Its uniface nature indicates striking from a single die, likely for die testing or design approval.

Technical/Grading: As a pattern, this silver 20 Sen piece (4.50 gg) exhibits exceptional, often proof-like, strike quality, reflecting its trial or presentation purpose. Key high-points include intricate Imperial crest details, sharp Japanese characters, and pristine fields. The uniface strike means one side is intentionally blank, a critical technical characteristic. Its rarity and precision contribute significantly to its numismatic value, often showing full detail on the struck side.

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