-
a moveable feast
Indeed, because this appears to be a single mast (sloop) with two headsails (cutter). And it's gaff rigged.
https://en.m.wikipedia.org/wiki/Friendship_SloopEdit: this source suggests the cutter/sloop distinction is based on the fore-aft position of the mast, but notes that this is hard to distinguish and that most people don't bother. The Wikipedia article I briefly read suggested that the distinction only applied in the Americas, but [citation needed] and all that. http://www.jordanyachts.com/3745
It can be a bit of a moveable feast
No, because sloop and cutter are two different things