This papercraft is a Ptolemy-class Starship, a type of Federation transport/tug utilized by Starfleet during the latter half of the 23rd century, based on American sci-fi entertainment franchise Star Trek, the paper model is created by [unknown].
Based on the standard Starfleet design tree and hull components of the time, the Ptolemy-class replaced the engineering hull of the Constitution-class with a connector at the base of the connecting neck, which could accept a variety of transport containers.
A graphic displaying a vessel of this class appeared on the Starfleet Academy bridge simulation in 2285. [Source: wikia]
You can download this papercraft template here: Star Trek - Ptolemy-class Transport/Tug Free Starship Paper Model Download [DropBox] [Gavitex] [pCloud]