The province of Guanacaste, claimed by Costa Rica since about 1824 and also by Nicaragua since 1858, was finally awarded to the former by President Cleveland in 1888.
Single stamps overprinted “Guanacaste” showing cancellations from the other five provinces are always fraudulent fabrications.
Single stamps overprinted “Guanacaste” showing cancellations from the other five provinces are always fraudulent fabrications.
Genuine stamps



