No. 404 - arriving mail art "Bismarck's Kongo Konferenz" from Heinz W. Lotz (Germany)

No. 404 - arriving mail art "Bismarck's Kongo Konferenz" from Heinz W. Lotz (Germany) - a collage with lot(z)s of stuff from the Kongo, like a curiosity cabinet. Thank you very much.