Drum (reference sound source available) Diameter approx. 34 cm

Gong - Origin Unknown

This was given to me by an acquaintance several years ago.
I was told it was purchased from an antique shop and was quite expensive.

I believe this gong, with its thickness and diameter, is rare.
Diameter: Approximately 34 cm
Thickness: Approximately 16 cm

Please refer to the photos for other details.
There are no cracks or breaks.

The pitch is approximately between C#1 and D1.

Thank you for looking.