Lot 40272 – 1878, 300r ochre, imperforate plate proofs on India

1878, 300r ochre, imperforate plate proofs on India paper without gum, block of 24 (6×4) from the lower right corner of the sheet exhibiting the two complete ABN marginal imprints, some wrinkles in margins and two vertical creases as found in the other large multiples; the largest multiple recorded of the 300r plate proofs and also bearing this design (the issued stamp has only two unused multiples, of 15 and 20, larger than a block of four), a striking exhibition item; ex Dr. de Amaral Machado.