Here is a highly detailed assembled model of the ARDM1  USS Oak Ridge Submarine Dock. It comes with a submarine too.

Scale is 1/1250 It is made of resin and it is 135 mms or 5+ inches long .

This is one of a number of models which we have inherited when we bought the former Mountford range from MT Miniatures.  It has been assembled and completed to a good standard and is in a good box and with a CNCollectables catalogue number CND26. Comes with a submarine.