50 Céntimos Martos

Martos is a hilltop town in Jaén province, and like hundreds of Spanish municipalities it resorted to locally printed emergency fractional currency during the Civil War after Republican authorities failed to supply adequate small change. These ayuntamiento issues were typically authorized by local committees with no formal banking infrastructure behind them, printed on whatever stock was available — hence the thick card construction here — and accepted only within the issuing town's limits.

The Gari Montaner catalogue remains the primary reference for these Spanish local issues, and the 889-D suffix indicates a distinct variety within the Martos series, likely differentiated by color, serial format, or overprint.