A surprising exhibit at the Dumbarton arm of the Scottish Maritime Museum was a model of a prototype helicopter:-

The blurb below explains:-

There were also some models of wooden ships (that could be a cue for a Crosby, Stills and Nash song):-

Plus another ship model, this one of HMS Dumbarton Castle:-

William Denny & Brothers (known simply as Denny’s) was perhaps the best known Dumbarton shipyard and was a major employer in the town. When it shut down in 1963 it cast a palpable gloom over the town from which arguably it has never recovered.

The photograph below is of the shipyard in its heyday and along with the accompanying information (second below) is on display at the Scottish Maritime Museum building in Dumbarton.

Also on display there is a model of the shipyard in its location alongside Dumbarton Rock :-

The Dumbarton Football Stadium – home to the Sons of the Rock – now exists in the area where Denny’s fitting out dock lay. I’ll come later to the Denny Tank mentioned in the information below:-