A pair of stand ends for the Type 2 B Power Press, Inclinable.
Thanks to Kimbalang Collectors (via Facebook) for the photos. 
1937 W. G. Goetz & Sons Power Presses Catalogue entry, p.11, Type 2 B Power Press, Inclinable

Above: c1905. L-R: unknown, unknown, son William Paul, Gottlob (beard), son Emil (bowler hat), possibly son Paul, possibly son Albert, unknown, unknown.
On the corner of Franklin Place and 399 Franklin Street West Melbourne (now 115 Batman Street).
See also West Melbourne page