 Roberts akanga ari Meya weSydney muna 1879, gore reInternational Exhibition, iro raakanga ari nhengo yeNew South Wales Commission, uyewo yeMakomisheni emitambo yakaitirwa muMelbourne muna 1880Amsterdam muna 1883, Calcutta muna 1883-4, London Colonial neIndia muna 1886, uye Centennial muna 1888. 