0.50 Pesetas Lanaja

Lanaja is a small municipality in Huesca province, Aragon. During the Spanish Civil War, the Republican zone suffered an acute shortage of small-denomination coinage almost immediately after July 1936, prompting hundreds of local councils — many of them tiny — to issue their own emergency paper currency under varying degrees of legal cover. The Consejo Local de Defensa designation marks this as a wartime administrative body, not a peacetime municipal authority.

At 36 × 35 millimeters, this is among the smallest paper emergency issues of the conflict. The near-square format was almost certainly dictated by available card stock rather than any design decision.