Need id and translation for a big blunderbuss.

[asomotif]

Originally Posted by kai

I can't remember having seen similar notches before though. Any similar examples (from firearms or other implements) throughout Asia?

Regards,
Kai

I checked a few examples on the website of the dutch army museum in Delft.
Several of them are attributed to be "asian", most of them are said to have Tower locks, some have notches. a few are rebuilt to percussion.
Not realy a study here, but nice for comparisson.