Rotterdam Branch of the World Ship Society

Kees Helder is a board member of the Rotterdam Branch of the World Ship Society:

The Rotterdam Branch is a division of the World Ship Society, a globally active association based in the United Kingdom whose members, either professionally or through a great personal interest, feel very closely involved in ships and shipping. The association aims to bring its members together regularly, to stimulate them in their common interest and to increase their knowledge of their field of interest.