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The picture is a lot bigger than that. Stuart Turner were/are a large pump manufacturer.
The original Centrifugal pump in 2 sizes circa 1924
https://www.officeofsteamforum.com/collections-pictures/stuart-engine-and-water-pump/msg13450/#msg13450
The later Centrifugal pump you have also in 2 sizes circa 1957
the pedestal pumps as you have shown
impeller pumps model 492 etc
And then there are the commercial shower pumps. bilge pumps and pressure pumps.
Lots to collect then.
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