7 May 1980
Set of 5 London Landmarks stamps issued to coincide with the London 1980 International Stamp Exhibition, on Cotswold die-stamped cover showing the statue of Eros. Cancelled with Supersonically to London 1980 BFPS 7580 special handstamp believed to show Concorde airliner.
Unaddressed, clean and with insert
Buckingham Palace, Royal Opera House, Hampton Court, Albert Memorial, Kensington Palace