Hello,
Indeed, as you drawn on the photo, the edge of the trunk is hollow engraved.
The circled gold inlay is flat, but not sure it is due to a seppa.
I enclose a photo, but it is hard to take a good one to show the relief.
Hello
Thanks for the replies.
A senior collector suggested Hamano or probably more Tanaka. Son Toryusai seems à Goodyear call too.
Th me tree is carve so no need to have a modified seppa.