One was a famous artist and a pioneering photographer, the other an ardent collector of photography, a curator and author—known to his many friends as "Mr. Photokina" for his founding and curatorship of the legendary exhibitions at the Photokina photography fair in Cologne. Man Ray (1890-1976) and L. Fritz Gruber (1908-2005) nurtured a professional and personal friendship for more than 20 years, enjoying that particular closeness that can sometimes arise between artist and connoisseur. Gruber was closely involved in projects such as Man Ray's solo exhibition at Photokina and the book Man Ray P Man Ray & L. Fritz Gruber - Herbert Molderings od authora Herbert Molderings a nakladatelství za skvělé ceny na e-shopu Martinus. cz.