Number Type/Style
Insignia Style
Division

Vehicle Type
Marking Locations/Other markings
Red-white outline
Black
7. Pz. Div.
Panzer IV
Number: Turret sides / rear
Small yellow
Hollow
10. Pz. Div.
Panzer III
Number & Insignia: Hull sides/rear 2. Co added yellow roman number II to turret sides/rear
Small white on black rhomboid
Hollow
5. Pz. Div.
Panzer IV
Number & Insignia: Hull sides / rear(?)
Yellow
Hollow or Black
7. Pz. Div.
Panzer IV
Number: Turret sides (rear?) Insignia: Turret sides (rear?) Note – some 7. Pz. Div. were unusual in having a large first digit.
Small yellow
Black
Unknown
Panzer III
Number: Turret sides / rear Insignia: Hull sides and turret rear
White
Hollow
Unknown
Panzer IV
Number: Turret sides (rear?) Insignia: Hull sides (rear?)
Small yellow
Hollow
9. Pz. Div.
Panzer IV
Number: Turret sides (rear?) Insignia: Hull sides (rear?)
Small white on black rhomboid
Black
2. Pz. Div.
Panzer II
Number & Insignia: Hull sides / rear(?)
Small white
None
1. Pz. Div.
Panzer III
Number: Turret sides (rear?)
Small white on gray rhomboid
Black
5. Pz. Div.
Panzer IV
Number & Insignia: Hull sides / rear(?) – also carries the red devil head marking of PzRegt 31 on the turret sides.
http://www.flamesofwar.com/hobby.aspx?art_id=2118

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Note added at 15 мин (2015-09-18 13:37:37 GMT)
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Tactical Numbers

Early tactical numbers were attached to vehicles on small rhombus shaped plates. The numbers were generally small and painted in white while the rhomboid plate itself was dark gray (RAL 7021) or occasionally black (RAL 9005). Unfortunately these small tactical numbers were frequently difficult to identify in combat, so many vehicles sported larger tactical numbers in white on the hull and/or turret. As with the bright white national insignia, these larger white tactical numbers were frequently painted over in yellow. Replicating these variants provides the modeler with several options for Polish campaign vehicles.
http://www.flamesofwar.com/hobby.aspx?art_id=2118

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Note added at 19 мин (2015-09-18 13:41:08 GMT)
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3. The 6th Panzer was the only division equipped with the Skoda-built PzKpfw 35(t). Weight, Inf tons; crew, 1' our; armour, 25mm front, 16mm side; ground pressure, i4lb/ sq. in. ; armament, 37mm L/42 gun with AP and HE ammu- nition, plus two Besa 7.9amm MC-s ; engine, Iaohp at l,2oorpm. Note detachable rhomboid-shaped plate bearing the tank’s tactical number.
http://www.slideshare.net/Wolfsangel/the-6th-panzer-division...

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Note added at 23 мин (2015-09-18 13:45:27 GMT)
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https://www.google.ru/#newwindow=1&tbs=li:1&q=Czech tanks "r...