EditorialRudolph D?hrkoop, Carlos Pedro de Freitas, paper, heliogravure, image size: height: 20,50 cm; width: 15,30 cm, inscribed: recto and left: Aufnahme u. Photogravure R. D?hrkoop, Hamburg; recto o. l.: 21, recto and center: Carlos de Freitas; verso and cen...