Woodbridge Antiques has dated this piece to the 1930s.
It comes in an antique leatherette case (not the original case).

Amy's father Adolph Sandheim was the Chief Instructor at The Central School of Arts & Crafts in Nottinghill Gate London, where Amy took over control.
A spoon of great interest and highly collectable and in lovely antique collector's condition.
Hallmarks: London 1933 by Amy Sandheim.
Measurements: Length: 11.2 cm Weight: 10.8 grams
Weights and measurements are approximate.
Woodbridge Antiques has dated this piece to the 1930s.
Specialists in quality antique silver, fine jewellery & accessories
You can view the stock and full dealer information on the Woodbridge Antiques Profile Page