If you compare, the price is about 14,000 times less than the 1901 U.S. Pan-American 4c inverted (CV $85,000). !!
He was asked to be the first President in 1844, but was exiled by General Pedro Sanatana. Now Santana and his conservative cohorts believed the best way to prevent being absorbed by Haiti was to align the Dominican Republic with Spain's interests. In fact, as mentioned, in 1861 Sanatana returned the Dominican republic to Spain as a colony. Duarte died in exile in Caracas, Venezuela.