Need help with a translation

[Willowyck]

Dear members,

could someone please tell me what it says on this box for a chawan?

Thank you very much.

 

Kindest regards

 

 

 

[Bugyotsuji]

Not my area but, until others arrive…
黒茶盆　盥?

Kuro chabon (?) chadarai?

[Nobody]

黒茶盌 – Kuro chawan

桂窯 – Katsura-gama

 

[Willowyck]

Thanks a lot for your help!