The New York jewellery firm of Marcus & Co. (1892-1942) created exceptional examples of Art Nouveau and Art Deco jewellery for an art-loving, wealthy elite. Innovative in their collaboration with contemporary artists, and in their captivating window displays and advertisements, the firm captured the imagination of Gilded Age families such as the Rockefellers. This volume chronicles their story, from the founder's apprenticeship in Dresden to the firm's grand premises on Fifth Avenue neighbouring Tiffany and Cartier. The triumphs and tragedies of three generations of Marcus jewellers, both artistic and entrepreneurial, are presented here together with exquisite jewellery and archival design drawings spanning 50 years.