It's not often that Shelley teasets of this calibre surface.
This shape, known as "Vogue" was a sales flop for Shelley. Visually it ticked all the art deco boxes of the day, but practically, it wasn't so easy. The main issue was the solid triangular handles on the cups. It wasn't easy to get a firm grip on the handle - less so when the cup was full of steaming tea - so despite the fab shape, it sold poorly and was discontinued after only a few years. That makes (what survives) quite rare today.
c1930 top of the range Shelley (England) fine bone china. "Vogue" shape teaset, "Sunray" pattern. Great combination of art deco shape and geometric pattern. Design by leading Shelley artist, Eric Slater. One cup is cracked but displays just fine. $2,995 set. Shop 27