A set of stamps commemorating the first-ever U.S.-North Korea summit in June last year are currently on sale in the North Korean capital, although denuclearization negotiations between the two sides show little sign of moving forward.The set of three stamps was launched on June 12, the one-year anniversary of the historic summit in Singapore between North Korean leader Kim Jong Un and U.S. President Donald Trump, a female worker at a stamp shop in Pyongyang told Kyodo News on Sunday.The stamps depict the first handshake between Kim and Trump, their singing of a joint agreement following the…READ FULL ARTICLE