Four gem set brooches, one Boucheron, 1950s-60s

Each of animal design - one designed as a owl, with a chrysoprase body and ruby eyes, British hallmarks and sponsor's mark for Hans Georg Mautner; one designed as a cat, with emerald eyes and ruby collar, British hallmarks and sponsor's mark Hans Georg Mautner; one designed as a fox, the eye set with a ruby and the coat and trousers applied with coloured enamel, French assay marks and British import hallmarks and sponsor's mark for Boucheron; one designed as a bee, set with rubies and diamonds.