Help !!!!!!!!! Please :o)
Someone has posted some pictures of a 20HP Jones on alt.binaries.images.vintage-engineering and wants to narrow down the dating. The owner simply states "that these pumps were essentially unchanged from the 1890s to maybe 1915 or so" ( It's driving a water pump ). I've Googled and come up with nothing, so am hoping you guys may be able to point me in an appropriate direction.
As the OP is in the US there may be avenues which he could take ?