[derk derin]

I just went outside to the Ambulance box and at first glance it has a Silver paint job inside but looking closer underneath the silver paint you can see there is white paint. From there it is the thin Red pressboard that the interior is sheeted with. So I would say the interior was originally white from the factory. At some point my box was painted silver, both inside and outside so somebody wanted to give it a new paint job to clean it up!
The inside of the doors are painted the same green colour as the outside of the vehicle. The doors when swung all the way open could be secured by a lower latch on the bottom of the ambulance body and held to the side of the body.