Gibraltar Date of Issue: 25th April 2024 two stamps (1.96 & 3.16 GBP) and one souvenir-sheet of 2 stamps (1.96 & 3.16 GBP) those stamps are issued in mini-sheets of 6 stamps 1. Loggerhead sea turtle (Caretta caretta) - IUCN Red list - Wikipedia article 2. Orca (Orcinus orca) - IUCN Red list - Wikipedia article