Lot 60478 – Spain 1930 airmails, original punch-holed proofsheets

1930 Columbus airmails, punch-holed proof sheets in various colours with notes and indications by the printers « W&S. Co. Londres » of required changes and adjustments on the printing plates. With 5c in brown (10), scarlet (sheet), reddish orange (two sheets), 10c light green (two sheets) dark green (sheet), 15c violet (double sheet and single sheet), brown 10), 20c orange (block of 16) or blue (sheet+block of 10), 25c red (double sheet and block of 20, bottom of plate), 30c violet brown (double sheet and row of eight), 40c dark blue rows of 5, of eight and corner block of 10), 50c orange (row of eight), 1pta violet (row of eight, bottom of sheet plate), 4pta (two full sheets), 10pta brown and 10 pta carmine (each in bottom block of 10), a total of 590 stamps from pair to full sheet of 25, magnificent specialist material.