顔出 かおだ看板 かんばんではありませんでした
kaodashikambandewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 顔出し看板

1. Was not a face-display sign.; Was not a sign with a face on it.

Past/Perfective
Negative
Polite
Formal Register