香櫨 こうろ えん川雲雀 かわひばり かいでしょう
kōroenkawa hibarikaideshō

Noun
Desu Copula

Expresses probability in a polite manner ("probably…") of 香櫨園川雲雀貝

1. Probably a skylark shell from Kagawa Prefecture.

Polite
Presumptive
Conjecture