The design of these items is attributed to Christopher Dresser on the following grounds:
- They are designed in Christopher Dresser's unique "Ornamentist" style.
- They utilise design elements Dresser used elsewhere.
- Sources for some of the design elements can be identified, and are documented as known to Dresser.
- They fall within a series of items designed by Dresser for Elkington & Co.

Christopher Dresser was a learned and eclectic designer, who called himself an "Ornamentist". This referred to his unique innovative synthesis of shapes and decoration, often using recent archaeological and cultural finds from locations as diverse as Peru, Fiji, and Anglo-Saxon Britain.