It's no secret that PzIV tanks with spaced armour were often mistaken for Tiger tanks. In fact, the similarity between the silhouettes led the Soviets to believe that this was a deliberate deception.
"German T-IV tank, camouflaged to resemble a Tiger, destroyed by the tank crew of Senior Lieutenant Ivan Strogin at the village of Yagodnoye.
Photo taken in 1943 by M. Savin, special correspondent of the Ogonyek magazine."