From my "summer of paper," all paper/card models, one kit, two scratchbuilds.
From the kit, HMV's 1/250 Spanish-American war era armored cruiser U.S.S Maine, which famously came to grief in Havana harbor in February 1898:
Proceeding from that build, a scratchbuilt 1/72 version of the steam torpedo launch the Maine had originally been intended to deploy:
And for a separate project -- a planned scratchbuild of a Civil-War-era Great Lakes sidewheel steamer -- a 'walking beam' steam engine (minus boiler, firebox and some plumbing), in approximately 1/250 scale (again):
In common with many American-designed ships of the era, the steamer will have the diamond-shaped 'beam' of the engine clearly in view poking out above the midships deckhouse...hence the bother to detail it out, to at least some degree.