10 Öre 1910 Sweden

The 1910 10 Öre from Sweden featured King Gustav V on its obverse, a design choice that reflected his recent ascension in 1907 and helped standardize the nation's coinage amid early 20th-century reforms.

This bronze coin, struck at the Swedish State Mint, weighed about 2 grams and measured 16 millimeters across. It served as pocket change for Swedes dealing with rising industrialization. The reverse simply showed the value encircled by a wreath, keeping things straightforward.

Exact mintage figures are murky; records from that era weren't always reliable. What we know is that these coins circulated widely without much fanfare.

Plenty of myths circulate about Swedish bronze coins turning green in humid weather, but that's just basic oxidation.