特殊 とくしゅ取扱 とりあつかい郵便 ゆうびんだったら
tokushu toriatsukaiyūbindattara

Noun
Da Copula

The "-tara" conditional form ("if/when…") of 特殊取扱郵便

1. If it were special handling mail; If it’s special handling mail

Tara Conditional