10 Won Brontosaurus

North Korea issued a series of aluminum commemoratives around 2010 targeting the international collector market rather than domestic circulation — hard currency from foreign collectors being far more valuable to Pyongyang than any face value these coins could carry internally. The "Brontosaurus" designation is itself a curiosity: the genus was formally synonymized with Apatosaurus in 1903, reinstated by some researchers only in 2015, meaning this coin was struck during the period when the name had no accepted scientific standing.