The load of the wagon is a 1st generation moulding machine and the iconic wooden duck of the LEGO company.
The locomotive is a model of a real Koef which was used in the German destribution center in Hohenwestedt.
The greenhouse was made with the help of a DUPLO part.

The rail puffer was originally designed by Dave Stannard: https://www.flickr.com/photos/david_stannard/13968900225/in/photostream/
The basics of the Citroen 2CV are designed by Hoexbroel: http://www.eurobricks.com/forum/index.php?showtopic=83877