1930-1931 CCPU cab to bed panel color

[katy]

The panel in question is located horizontally between the bottom of the cab and the bottom of the bed. It is a dust panel that is usually missing from the CCPU.

Can you explain to this doofus how a panel with what looks like a 90° bend in it can be mounted horizontally?

[Arcieri]

Here is the guide I used when installing the one in my 1931 OCPU.

Ray