Date of Issue: 4th April 2011
four stamps (0.10, 0.42, 0.44 & 1.50 GBP)
NOTE - those stamps don't bear the new official Europa stamps logo.
Gibraltar isn't a full PostEurop member but issue Europa stamps non stop since 1979 but has never used the official CEPT of PostEurop logos !
those four stamps are issued in mini-sheets of 8 stamps