COSTA RICA QUBA 1940's. Feel free to ask if you have any questions. The item "US COSTA RICA QUBA 1940's LARGE COLLECTION OF 24 AIR MAIL COVERS MOSTLY WAR TIME" is in sale since Wednesday, January 8, 2020.This item is in the category "Stamps\United States\Covers". The seller is "jeneezirish35" and is located in Appleton, Wisconsin. This item can be shipped worldwide.