10 Céntimos Martos

Martos is a town in Jaén province, Andalusia, and like hundreds of Spanish municipalities during the Civil War, it issued its own fractional emergency currency when the Republic's small-denomination coinage vanished from circulation — hoarded, melted, or simply not reaching rural areas. These local emissions, authorized under the pressures of 1936–1938, were technically provisional and almost never redeemed in any systematic way.

The Gari Mon catalogue documents the regional breadth of this phenomenon across Catalonia, the Levant, and Andalusia. The "-B" suffix here likely distinguishes a second variant — possibly a color or paper difference — from an earlier emission under the same denomination.