Petrol tank - 1939 VG500

[PaulG]

I have managed to pick up 2 petrol tanks over the years. I will attach pictures of them. I believe one of them is the correct tank for my 1939 VG500 de luxe, the badly handpainted red tank in the pics.
I am keen for someone to confirm I have the correct tank.
I am also keen to know what the other tank is off (silver on top and red jnderneath in the pictures).
The differences i can see is one hole going through the side wall in the panel indent on one and a hole going straight down in the indent bit on the other. And, one tank has two screw holes to join both sides with a tube, the other has one hole.
Hopefully you can see clearly in the pictures.

[tony.barnett]

The red painted one is pre-war with a speedo drive tunnel for a PA speedo near the rear mounting points. The other is post-war with the speedo drive tunnel for a chronometric directly below the speedo housing. Both appear to be 500 tanks.

[PaulG]

That's exactly what I wanted to know. Thank you.