The porcelain fish figurine is signed by Jiri Bradacek on back of the base.
Jirí Bradácek was a Czech visual artist. He was born in 1922 and died in 1984. Several of his works were sold at auctions. He worked for Royal Dux after the WWII, when German workers were gradually replaced by students and staff from the Academy of Applied Arts in Prague.
The scalar figurine is signed and marked:
Made in Czechoslovakia
Jiri Bradacek signature: