BEER: Stamp of 3½c., PROOF printed in chestnut, imperforate block of 6, VF! (Image)

IMPUESTOS INTERNOS, Year 1895, value 4½c., proof in black on ordinary paper, complete sheet of 25, fantastic and very rare! (Image)

IMPUESTOS INTERNOS (matches): Proof of ½c. stamp in yellow-green, large block of 25 with pre-printing paper fold, several stamps are partially or completely printed on reverse, fantastic! (Image)

IMPUESTOS INTERNOS (matches): Proof of 1c. stamp in red, printed on ordinary paper, imperforate, sheet of 50 examples, very interesting! (Image)

IMPUESTOS INTERNOS (matches): Proof of 1c. stamp in red, strip of 3 partially perforated, printed on ordinary paper, VF and rare! (Image)