10c black on orange GUAYANA 'Large' type with variety STAMP PRINTED DOUBLE with fancy control overprint in corner, signature and large part 'FISCALIA DE INSTRUCCION PUBLICA ESTADO GUAYANA' control mark in blue. A fine mint copy with gum. Small perf fault at lower left but otherwise rare & unrecorded. 2025 Pedro Meri certificate accompanies. (SG 256 variety)