放射 ほうしゃ のう標識 ひょうしきじゃなかったです
hōshanōhyōshikijanakattadesu

Noun
Desu Copula

The polite, past negative form of 放射能標識

1. Wasn't radioactively labeled.; Wasn't marked with radioactivity.

Past/Perfective
Negative
Polite
Casual Register