Somebody is or was bored and had the time to cut off or mill off the upper section of a pump to stack them I bet.
X 2 with the above post.
There seems to be a bottom plate right where it should be for the stock looking upper pump set up and the drive tang end looks to be stock also and if the pumps where stacked there wound seem to be no need for a middle plate like it has, only a gasket.
Care to take it apart for use and take +'post up more photos?
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I do stuff for reasons.
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