Art Deco silverplate Cocktail Shaker designed by Keith Murray (1892-1981) for Mappin & Webb with a removable strainer, Circa 1930.
See “Keith Murray Designer, A Perrot’s Price Guide by Stephen Johnson, Edited by George Perrott” on page 60 where this design is illustrated.
Dimensions: 23 cm high by 9 cm middle diameter by 8 cm top diameter by 6.5 cm base diameter.