First thoughts were that this is Czech possibly Hermanova or Skrdlovice but I can't find anything exactly like it. There is a photo on P.156 of Marcus Newhall's book of a Jablonecke display with two bowls that look slightly similar but I can't see exactly. It is 9cm. tall, diameter 12.5cm. and weighs an impressive 1.1kg. and it appears to have been used for keeping keys etc. in. As usual I don't rule out that it was made elsewhere.