This is the original issue 2004 Klingon kit from Polar Lights
Following up on the successful Enterprise kit, Polar Lights presents the Klingon D-7 Battlecruiser. This was featured in many of your favorite Trek episodes including Day of the Dove and The Enterprise Incident. Contains extra parts and decal for several variations, including Romulan markings! This great model is in the same 1/1000 scale as the Enterprise.