Diagonal red hollow SPECIMEN ovpt front; all-zero s/n 1 peso Values
Details
Obverse: Spanish text; Banco Nacional de Cuba seal with star, shield, and laurels in circle; zig-zag underprint pattern radiating from center; large A in circle
Reverse: Spanish text; Castillo San Salvador de la Punta (Castle of Saint Salvador of the Point), stone fortress and cannons in Havana circa 1600