Again an envelope to Ryosuke Cohen in Japan to insure that in return I will get a Brain Cell for the TAM Archive. Last version I received was #1009, so the collection grows and grows

Also two envelopes to Heleen de Vaan with a minimalistic address notation. Will see if they get there. The zipcode should reveil the city (Amstelveen), and the sipcode also reveils that the street is a P.O. Box, and therefore the number 581 should be enough. Will the PostNL be  clever enough? I think so.