With the increase in skill in transferring designs itbecame less and less possible to discover differences inthe designs but occasionally double transfers are still tobe found on our modern stamps and, when the processof making the printing plates is rushed, sometimes aconsiderable number of such flaws may occur. Anexample would be some of the stamps of the 1932George Washington Bicentennial issue where some reallyextraordinary double transfers have been discovered.
Bear in mind that such a flaw is constant and willalways appear on exactly the same stamp of the sheetso long as this particular plate is in production or untilthe flaw is discovered and corrected.