Tenshō ōban; large oval gold coin of the Tenshō era
Historical term for a specific large gold coin minted in 1588 under Toyotomi Hideyoshi. Used in discussions of Japanese numismatics and the Azuchi-Momoyama period.
The Tenshō ōban is a large gold coin minted by Toyotomi Hideyoshi.
大判 is the general term for large oval gold coins of the Edo period; 天正大判 specifically refers to the earliest type from the Tenshō era.
From 天正 (Tenshō, the era name) and 大判 (ōban, 'large gold coin'). The coin was minted in 1588 during the Tenshō era.