Many old-school Star Trek fans will remember one of the early in-universe "non-fiction" Star Trek books, the Starfleet Technical Manual by Franz Joseph. Joseph's book included several non-canonical Federation starship designs, the first fans had ever seen that didn't look like the Enterprise. One of those designs was the Ptolemy-class tug, seen here painted by me with decals now firmly in place. This one's called the USS Encke, the name taken straight from the Technical Manual.
I'm quite happy with how this model turned out. The paint is pretty even, and I managed to position the decals pretty close to where they should be.
Why does the large cylinder have a different registry number than the main body of the ship? Because this is actually two different ships: the tug, which consists of the main hull (the saucer), the warp nacelles, and the spine extending downward to the cylinder. The cylinder itself is an independent sublight starship, an unnamed passenger liner. This is one of the configurations Joseph illustrates in the Technical Manual; the tug can also carry cargo pods, and I'll post a second version of the Encke to demonstrate tomorrow.