Julie Cartwright Antiques has dated this piece to the 1920s.

Hallmarks:
A.E.J. for A E Jones.
Birmingham Assay Mark.
Lion Passant.
Date letter "z" for 1924.
Retailer's marks "Z Barraclough & Sons, Leeds" impressed at the base.
Condition:
Excellent.
No dings. No dents. No inscriptions.
Clear hallmarks.
Dimensions and Weight:
Height: 7 cm / 3 inches.
Length handle to spout:: 13cm / 5.2 inches.
Weight: 138 g / 4.8 oz.
Julie Cartwright Antiques has dated this piece to the 1920s.
You can view the stock and full dealer information on the Julie Cartwright Antiques Profile Page