Figure 5 from: Koch A (2018) Discovery of a rare hybrid specimen known as Maria's bird of paradise at the Staatliches Naturhistorisches Museum in Braunschweig. Zoosystematics and Evolution 94(2): 315-324. https://doi.org/10.3897/zse.94.25139

Figure 5 Catalogue page from the Überseemuseum in Bremen with the entries of two specimens of P. maria (catalogue numbers 13143 and 13144), the former of which was, probably among others, exchanged with Walter Behrens on 22 June 1954 and which is now SNMB N49068 at the Braunschweig collection. Both male specimens were transported to Bremen by the trading company Köper, Docke u. Co. in 1917. Photo by M. Stiller.