RPPC sent from Austria to German geologist/naturlist Carl Carnier (author Observacoes Geologicas-Geographicas e Ethnographicas sobre a Viagem de Exploracao de Cuyab�? �? Serra do Norte, Passando por S. Luiz de C�?ceres) where he had worked on an expedition on the Amazon in Brazil with the Rondon Commission. Sent from Dr Ottokar Lenecek, of Bruenn, Austria (now Brno, Czech Republic). Corners/edges creased and worn as per scan.