A friend and I restored one of those wayyyy back when I was in my late teens. It wasn't in as bad shape as that one though, although it did need a good de-rusting inside and out and new gaskets (made from cornflake packet cardboard). A couple of coats of paint and it looked and ran as good as new.
Supplying Lister, Petter, Wolseley, Ruston, Villiers and Jap engine spares as well as being the parent company of Paragon Paints, retailer of ultra high quality enamel paint finishes. We can cater for most of your stationary engine spare parts, ancillary and consumable requirements. This is my 1937 2hp Lister D Type (Spec 18D2H) engine. This is the first stationary engine that I ever bought.
![Lister D Specs Lister D Specs](http://craigmarshall.org.uk/sites/default/files/images/1132.jpg)
A couple of years after that I was staying with a friend in Cyprus and in a small shed on their farm there was one of those chug-chugging away pumping water, and then spotted another one when admiring an immaculately restored canal narrowboat and getting a guided tour from the owner. They crop up everywhere and were a true general purpose workhorse. Getting back to the question, as I recall it was a two-man stagger and drop weight, with an extra pair of hands to get it up onto a trailer.