Hallmarked: 9ct Gold
Assay Office: Birmingham 
Date: 1915
Makers Mark: WKK  Kay & Co Ltd (William Kilbourne Kay). Registered 1911, Shrub Hill, Worcester
Size: UK T EU 61 US 10
Weight: 9.6g
Face: 14mm x 11.5mm
The ring is old rosy antique gold in colour. 
Good clean Vintage condition. Boxes in pictures not included. Resizing available.