As you’ll no doubt recall, the English and the French have a complicated history - and the history of Saint Lucia handily reflects that, having endured the flip-flopping dominion by the French and English through the early years of colonization (it was claimed seven times each by both before the English took definitive control in the early 1800s - earning it its informal sobriquet “Helen of the West Indies”). Saint Lucia gained full independence as a member of the Commonwealth of Nations in 1979. [Incidentally, it is the only nation on earth named after a once-living lady - in this case, Saint Lucy of Syracuse, named by the French sailors (it is thought) who shipwrecked on her shores on St. Lucy’s Day.]
Stamp details: Top left: Issued on: December 18, 1860 From: Castries, Colony of Saint Lucia MC #1
Top right: Issued on: December 18, 1960 From: Castries, Territory of Saint Lucia MC #165
Middle stamps: Issued on: February 22, 1979 From: Castries, Saint Lucia MC #450, 452
Stamps on bottom: Issued in: 2019 From: Castries, Saint Lucia Colnect #2019-01