So I got my 1872-1972 A History of Howe booklet and found a couple of interesting bits.
Howe was still offering a piston pump as an option in 1972.
At that time they offered single stage, 2 stage (600psi max) and 3 stage (800psi max) centrifugal pumps.
They also claim a couple of firsts
The first to combine a volume pump with a pto driven high pressure fog pump.
Howe introduced their top mount pump panel in 1966, and claim it to be the first available to the fire service.
Howe was still offering a piston pump as an option in 1972.
At that time they offered single stage, 2 stage (600psi max) and 3 stage (800psi max) centrifugal pumps.
They also claim a couple of firsts
The first to combine a volume pump with a pto driven high pressure fog pump.
Howe introduced their top mount pump panel in 1966, and claim it to be the first available to the fire service.
Aaron Woods