USS Enterprise Constitution Class Model

"The USS Enterprise (NCC-1701) was a 23rd century Federation Constitution-class starship operated by Starfleet, and the first Federation starship to bear the name Enterprise. During its career, the Enterprise served as the Federation flagship and was in service from 2245 to 2285. During the latter years of its life, the Enterprise served as a training vessel until its destruction in 2285."
-Star Trek Wiki