This paper model is a Pz.Kpfw. V Ausf. D (Panzerkampfwagen V Panther Ausf D), a German medium tank used during WWII, produced in January 1943, the papercraft is created by Aum, and the scale is in 1:35.
You can download the papercraft model here: WWII Pz.Kpfw. V Ausf. D Tank Free Paper Model Download [Box] [Gavitex] [Ge.tt]