Aramis Antiques has dated this piece to the 1920s.
It has quite a flat but thick handle. The shaft is about 3.5cm near the top. The design is a symmetrical one of several diagonal carved panels curving round the stick, interleaved with two plain panels inset with a channel hinting at bamboo.
The condition is excellent, and being ebony the stick is weighty, straight and super strong. It has a warm rich black/brown colour also typical of this wood.
Aramis Antiques has dated this piece to the 1920s.
You can view the stock and full dealer information on the Aramis Antiques Profile Page