まん ねん通宝 つうほうじゃなかったです
mannentsūhōjanakattadesu

Noun
Desu Copula

The polite, past negative form of 万年通宝

1. Was not a Mannen Tsūhō.; Wasn't a Mannen Tsūhō.

Past/Perfective
Negative
Polite
Casual Register