Japan 1907 (M40) 20 sen

from the Mountain Groan Collection

This is a common date of a type struck 1906-11 as part of the general reduced weight silver coinage. The silver ten and fifty sen were similarly shrunk. Altho the ten sen was struck until 1946 and the fifty sen until 1948, the twenty sen was not issued again.

Recorded mintage: 20,000,000.

Specification: 4.05 g, 0.800 fine silver.

Catalog reference: Y-30.

Source:

• Michael, Thomas, and Tracy L. Schmidt, Standard Catalog of World Coins, 1901-2000, 47th ed., Iola, WI: Krause Publications, 2019.
• The Catalog of Japanese Coins and Banknotes, Tokyo: JNDA (Japanese Numismatic Dealers Assn.), 2014.

Link to:

• 1905 20 sen, large size
• 1906 20 sen
• 1907 10 sen
• 1907 10 yen
• 1907 20 yen
• 1910 20 sen
• Coins and currency dated 1907