HMS Dryad class gunboat original large scale model

Preserved at the Bulgarian Navy Museum in Varna, scale unknown.  

Imperial Russian Navy Sivuch 1906 gunboat, 1/48 model

This model is preserved at Central Naval museum in Saint Petersburg.

HNLMS Johan Maurits van Nassau, 1/100

This model is preserved at the Dutch Navy Museum in Den Helder. Some info on this ship's class here.