Please help identify what I think is a slip decorated ceramic shallow long bowl.

[Bratnila]

Please help identify what I think is a slip decorated long shallow dish. Color is a blue-green with iridescent glazing and decorated in a continuous gold slip of a Bird, butterfly, and 2 flowers, one at each corner of dish. The mark is also in gold slip with what I think reads: A. Imlah 1955.

Can this be attributed to a certain ceramic manufacturer or an independent studio and what catagory of ceramics defines this piece.

Thank you in advance for any information available.

Rhonda (Bratnila)