 Pedzisa mutsara unotevera: Muna 1860, pashure pokunge Felice Beato aenda kuChina kunotora mifananidzoHondo yechipiri yeOpium naAntonio Beato vakaenda kuEgipita, Robertson kwenguva pfupi vakabatana naCharles Shepherd kudzokera kuConstantinople. Kambani yaRobertson Beato yakaparara muna 1867, yakanga yagadzira mifananidzo - kusanganisira mifananidzo inoshamisa yakawanda-yekudhinda - yeMalta, Greece, Turkey, Damascus, Jerusarema, Egypt, Crimea neIndia. Robertson angangodaro akasiya kutora mifananidzo muma1860s; akadzokera kunoshanda semupendi paImperial Ottoman Mint kusvika pamudyandigere muna 1881. Mugore iroro akaenda kuYokohama, Japan, achisvika muna January 1882. Akafira ikoko muna April 1888. 