Lot 40036 – 1866, 20r brown carmine, block of four, intense rich

1866, 20r brown carmine, block of four, intense rich colour, each stamp cancelled by segmented cork cancel and two pen strokes; the largest used block recorded of the 20r brown carmine, of which just two are known, with used multiples of this stamp being exceedingly scarce; ex Dr. de Amaral Machado.