This rare set of Showa aluminum coins, representing years 30-42 and 44-45, captures a unique slice of Japan's numismatic history, appealing to collectors of historical currency and cultural memorabilia.

The absence of the year 43, which was never issued, adds to the rarity of this collection, as it completes significant segments of the Showa era's monetary evolution.

In excellent condition, these coins demonstrate the high standards associated with Japanese minting practices during this time, making them an authentic representation of the period for discerning collectors.

Pricing around ¥2,800 is consistent with the Japanese market for historical collectibles, reflecting ongoing demand for well-preserved items with a documented historical context.