Manston (click on photograph to bring up bigger/better version).

[Thanks to Shawn Shaw for all the photos.]

manston, 2016 Manston, Dorset

Markings: "J. HALL & SONS BRISTOL" and "1461" on the cap.

Manufacturer: J. Hall & Sons, Bristol - but currently no further information on this manufacturer.
manston, 2016

manston, 2018 At a farm near Manston, Dorset. The pump has a label affixed to it, reading : manston, 2018

The 1911 Kelly's Directory gives the following description of the business; "Wyatt Brothers, wholesale and retail ironmongers, plumbers, sanitary and hot water engineers, oil and color merchants, cutlers, gasfitters and sewing machine agents, 1 Market Place." The firm took over the premises in 1907 from Lindsay and Dalrymple, also ironmongers, and were still in existence in 1939. See a photo of the shop.(the page doesn't upload immediately, but will if you persevere.)
 Markings: Lion,and a probable "RD NO. 46671".

Manufacturer: Joseph Evans.