1K+
Downloads
Everyone
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About this app
The essential reference guide for stamp lovers, the WNS is a reliable, unique and free database of certified stamps issued by Posts. Fully filterable and easily searchable with a single-click authentication using AI, this user-friendly database – with new stamps added to the vast collection every week – is the perfect tool to support your philatelic hobby!
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No data shared with third parties
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No data collected
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About the developer
Union Postale Universelle (UPU)
apps.support@upu.int
Weltpoststrasse 4
3005 Bern
Switzerland
+41 79 345 99 72
