Hi there, this is a 1957 Napco 3100 4x4 with a big back window cab. I looked for years to find a truck like this. The gentleman that owned it had it for over 30yrs. He told me him and his wife drove it from Idaho to the redwoods in California on there honeymoon. Wow what a trip! It started its life as a Forest Service truck and has a newer 350 engine runs and drives new tires and minimal rust! This truck needs someone to restore it and bring it back to its glory! I am not sure what this truck is worth but i do know there are not many of these left. Thank you