Need some clarification on the Panthers vent grates

I'm working on my panthers, now in detail drawings the grates look the same but in the A the grate is narrowed but in other drawings the same as the others. In pics too but seen them on Gs as well. Is this a manufacturer deviation and what manufacturer was it. Just confusing want to be accurate on what engine deck I'm using. Any information appreciated.

 

..here are some War Thunder pics...it's free...just sign up...and you can look at many tanks...you might have to research the tanks first, before you can view them in 3D
..don't forget to zoom in...looks like War Thunder added some realistic, small wear and tear details!
..I used to play the Panther D, but I upgraded to the IS-6..Panther turret rotation very slow
..I don't know if this helps, but here you go: n

 

..for everyone's viewing pleasure [ I know I love these ''gaming'' pics ] :

 

Panther G grates

 

Panther A grates

 

..where are those from?

 

Japanese publication

AFV Modelling guide Vol.3. Panther.
Only the chapter titles are in english, rest is in Japanese.

The photos are mostly of the Panther A that used to be at Aberdeen.

 

The G photos are from
Panzerkampfwagen Panther 50th Anniversary Collectors Edition
By Uwe Feist & Bruce Culver.

 

rt....

 

Thanks for your time and information

 

Thank you so much for your time and information

 

Thanks guys I think I can move ahead on my panther f

 

That's pretty kewl is the game pretty good I love watching world of warships and some of the warthunder vids on YouTube

 

..I thought some of these PC/video game companies take actual photos/video of what they are making ....?