Royal Crown, Derby, United Kingdom. Set of “Red Aves” pattern English bone china porcelain service, 41 pieces. Produced between 1936-1997; a discontinued pattern. Each marked along the underside. The set comprised of two lidded tureens, six teacups, four condiment dishes, two serving platters, one serving bowl, 14 saucers, and 12 small plates. Height ranges from 1 in to 9 in; diameter ranges from 2 1/4 in to 13 in.