Woodbridge Antiques has dated this piece to the 1930s.
The maker's marks are also clearly visible for Joseph Cook & Son.

Feels nice to hold in the hand, a rare design.
Condition: In great antique collector's condition.
Hallmarks and maker;s marks: Birmingham 1927 by Joseph Cook & Son
Measurements:
Length of spoon: 8.8 cm approx.
Weight: 15.4 grams approx.
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