Here we have my mamod steam wagon, I have owned this from new, it was bought for me as a present in the seventies. 
It has only been used a handful of times in all these years and is in outstanding condition in my view. The worst part is some slight paint missing around the boiler water fill area (as seen in pictures) otherwise the paintwork is lovely as you can see. It’s always been kept in its box and also comes with the steering handle, funnel and pamphlets it came with originally as seen in the photos. Even the box is in great condition!
Very well looked after and from a pet and smoke free home. 
Hasn’t been used in many years, but I can’t see any problems arising from this.