[photo: bust as shown at 1880-81 Melbourne exhibition]
The bust of Summers donated by Scurry in 1884 was presumably identical with the sculpture he exhibited at the 1880-81 Melbourne International Exhibition. Many thanks to Summers researcher Jennie Maggs for alerting me to the fact that the sculpture was by Scurry himself, and identifying it in the photograph of the Victorian Picture Gallery at the 1880-81 exhibition (as shown here).
This appears to have been the only sculpture by Scurry in the pre-Felton collection, despite the fact that he worked predominantly in that medium in Melbourne for over 30 years following his arrival in 1853, including a period during which he assisted Summers (refer linked artist entry for further details).
AR 1884, p.36 (“Bust of the late Charles Summers”); NGV 1894, p.139 (VII.Cast Gallery, no.68); not listed in NGV 1905
See Works of Art, Official catalogue, Melbourne International Exhibition, 1880-81, p.305, cat.no.450 (available online through the SLV). For the 1880 photograph by Ludovico Hart, see https://collections.museumvictoria.com.au/items/1563074 (item MM 107809)
Notice of the de-acquisition of “surplus plaster statuary” appeared in The Age, 30 May 1908, p.6: see http://nla.gov.au/nla.news-article197337009 (thanks to Jennie Maggs for this reference)