Used stamps exchanges.

I collect stamps since my childhood, but for many years I have left my collection in the bookshelf. Since a little while I'm more into stamps again and am way more organized then when as a child.

Mainly I collect stamps of ships, flora, fauna (especially endangered animals - WWF) and foremost commemorative stamps. I also collect any theme of both countries The Netherlands and Belgium. I do have most common already, but also still need plenty. I always go for full series (variants excluded).
You can also check my colnect page: https://colnect.com/nl/collectors/collector/Sander-Ottens

If you could make a nice mix of old and new, CTO and non CTO, that would be nice.

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