A set of four Art Deco white onyx ashtrays of rectangular section, the shallow well with blue banding, each with silver-plated presentation plaque engraved with an inscription: "Argentine Championship, Buenos Aires. 1930," "Davis Cup, Paris. 1933," "Australian Championship, Sydney. 1934" and "Men's Singles Championship. 1934," 100 x 80mm. (4 x 3½in.). (4)