Photo 56 is of Atbara class No. 3396 Brisbane, & taken prior to 1904.
1: Wheels are too big for a Bulldog;
2: Nameplate is full width...
The NRM 'OPC' list gives these:—
11752 G.A. of 4 wheel std. bogie for 25 ton boiler wagon GWR
11764 G.A. of 4 wheel bogie 4' WB for 35 ton...
Found this shot on Flickr that confirms it:
There used to be one off Paul Street, Taunton, in the yard that backed onto the old County Hotel. Now infilled, but the outline remains:
It is if you can take the covers off & have a look at the metadata:—
Separate names with a comma.