Well, I was just emailed by the very kind Arnoud op de Weegh who "saw your post from the sleeping beauties photographed by Herbert W Hesselmann. This collection is the famous dovaz collection. Maybe the following site about barnfinds is also interesting for you:
Many thanks Arnoud! Very kind of you to share the link to more photos and information about them!
Also, here's a small bit about them too: http://www.prewarcar.co.uk/read_article.asp?id=3326