Willie Joe Bob,
This is what I have learned over the years, most of this from member Jim Payne. It matches what I have found on my 1935 EB, this would be the same for 1934 DB. It is important to note that this may not be 100 % accurate and replies like this tend to be taken as gospel. I hope others with actual experience with these trucks can reply to confirm or take exception to these.
Inside of cowl, fire wall, sides of cowl, brackets that hold floor board and attach to fire wall, exposed wood on cab hinge pillar gray primer.
There was a rubber floor mat.
The wood sill, wood floor boards, battery inspection cover, metal arround pedals, foot rest, transmission cover, cab hinge pillar to wood sill bracket, metal and wood parts of seat riser, rear seat cushion to back of cab brackets, map pocket behind driver seat (sheet metal) black.
Sheet metal laid over cab hinge pillar, extending from roof down to floor, door hinges, Sheet metal on door lock pillar and body lock pillar body color. The sheet metal roof and visor is black and the exposed part above door on the inside is black.
The area arround the window reveals, and on the door hinge pillars looks to be covered in black cardboard (vinyl) or weather strips, etc. The top of the door is exposed and looks to be painted ???
Windshield and windshield hinge, dashboard, window reveals, door panel, footman's loops black.
All interior plated parts are nickle plated.
Rear of cab and side of cab behind driver seat duPont # 94 light green.
There is a dark green vinyl or cardboard head liner on inside of roof. It is in three pieces. I have a pattern but I need to get it un packed and this may take several months. Strips and bolts that hold headliner in place black.
There is a dark green heavy cardboard cover that extends from map pocket about two thirds down to the floor. It attaches to cab lock pillar and only goes about two thirds of the way towards the back of the cab.
I know I have missed a few parts but I hope other people who have restored these trucks or have originals can add to this and make corrections as needed.
Thanks and I hope this is helpful.
Chris