Guinea-Bissau 10 Centavos

The 10 Centavos coin for Guinea-Bissau, struck between 1917 and 1920, was minted in Lisbon while Portugal maintained a precarious neutrality during World War I.

That context meant production continued amid global shortages, with bronze blanks sourced locally rather than imported. The obverse shows the Portuguese coat of arms, a standard design recycled from metropolitan issues, while the reverse simply states the denomination and colony name. No major varieties are recorded, though wear patterns suggest heavy circulation in rural areas.

Exact mintage figures are unknown; colonial records from that era were often incomplete or lost. Some specimens turn up with edge nicks, likely from makeshift use in trade.

It's a reminder that not every coin has a dramatic tale—sometimes, it's just bronze doing its job.