Lot 42300 – 1893, « Instrucción » Bolívar, complete set of eight ABN proofs in black on thin white paper affixed to cards, in addition 50c proof with marginal « SOFT LAYDOWN OF C-284 » imprint

1893, « Instrucción » Bolívar, complete set of eight ABN proofs in black on thin white paper affixed to cards, with sheet margin at base showing the die number crossed out and amended with a larger five-figure number; in addition 50c proof with marginal « SOFT LAYDOWN OF C-284 » imprint and three numbers (one being crossed out), very rare.