German Cross

Germany's Panzerkampfwagen VI Ausf E, SdKfz 181, How to Identify the Different Models

These are not 100% perfect rules. There were exceptions, but these are the general differences.

Early Production
Commander's cupola is straight sided. Gunner has 2 ports.
Narrow mud flaps German Tiger I Identification Early Production Mud Flaps
2nd pistol port, right rear turret  
Two headlamps German Tiger Tank Identification Early Production Headlamps
Mid Production
Commander's cupola is shorter. Gunner still has 2 ports.
Full width mud flaps German Tiger I Identification Mid Production Mud Flaps
Rubber rimmed wheels German Tiger I Identification Rubber Rimmed Wheels Mid Production
One headlamp German Tiger Identification Mid Production 1 Headlamp
Late Production
Commander's cupola is same as Mid Production. Gunner has 1 port. (Note: in this picture of a model, the 1 port is very hard to see in the Zimmerit.) German Tiger I Identification Late Production Turret
Steel wheels German Tiger I Identification Steel Wheels Late Production