Rick_H wrote:
Are these Modelversium, and are the two boats the same?
These models represent the tug boats with the collapsible masts. There is also slightly different style of mast that isn't collapsible. It isn't the case of some boats having one and other boats have the other - you can find pictures of particular boats with either kind at different times. I assume they have certain masts depending on which base they are stationed at, if you are trying to make a diorama based on a particular location.