English sterling silver salt, pepper and mustard pot - Birmingham 1921, mark of DOCKER & BURN

openwork border with geometric decoration and blue glass liners. Sterling silver, fully hallmarked Birmingham 1921-1922, silversmiths Docker & Burn (Ref: Jones p. 331).
Height x width x depth: 4.5 x 7.3 x 4 cm; 3 x 5.5 x 4 cm; 5.5 x 3 x 3 cm. Total weight: 147 g.
Item condition grading: **** good.