Every Ninjindai Okogin was minted in Ginza in Kyoto, and the primary material of these coins was cupellated silver of Sado Gold Mine, Ikuno Silver Mine and Iwami Silver Mine.
人参代往古銀はすべて京都の銀座において鋳造され、吹元銀は佐渡金山、生野銀山、および石見銀山の灰吹銀であった。