28k Registered envelope that has been surcharged to 60k in blue pen over top of the 28k stamp impression. Sent from Ife on April 2, 1984 to Jersey, UK and uprated by affixing a single 30k Stop Polio Campaign Issue. It is unclear, which rate this was paying, but it would appear, from examination of other covers from around the same time, that 30k was the double second class airmail rate to the UK. These provisional surcharges are quite rare. Net est. $50.
