This is the 406 Mercedes Bonna 2500 Ambulance. I believe it is in 1/35 scale as it measures 5-3/4" long. I got it off Ebay for my ambulance collection. I have alsofound many more in different liveries. You can see them at the following pages.

Red Cross Issue

German Issue

Austrian Issue

Blue Cross Issue

St. Bartholomew's Issue

Norwegian Issue