Van, one and the same, built in Boothbay, ME
circa 1911. Converted to diesel, she has a long history.
Here is a link to a Bangor Daily News article....pic is Ted Kennedy in the wheelhouse
http://bangordailynews.com/2012/05/01/news/midcoast/after-50-year-hiatus-maine-built-prudence-returns-to-home-waters/