Lot 40009 – 1866, 50r (9) and 200r (8) single colour proofs originating from the early 200r+50r composite proofs

1866, 50r (9) and 200r (8) single imperforate colour proofs originating from the early 200r+50r composite proofs with ABN imprint below (some do not show it in this lot), in different colours or shades and printed on thin or medium paper; twelve examples exhibiting a faded impression and colour (especially those for the 200r), a scarce group; ex Dr. de Amaral Machado.