The World Association for the Development of Philately (WADP) and the Universal Postal Union (UPU) jointly conceived and developed the WADP Numbering System - WNS, which was launched on 1 January 2002.

Issuing programme for Norway, 2011

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Date of Issue Subject Number In Set
3 January Norwegian Confederation of Sports 150th anniversary 1
3 January Wildlife in Norway 2
23 February Nordic World Ski Championships Oslo 2011 2
15 April Amnesty International 50th anniversary 1
15 April Fridtjof Nansen 150th anniversary 1
15 April Tourist stamps (booklet) 3
15 April City of Drammen bicentenary 1
15 April South Pole centenary 2
3 June Fire and rescue services 150th anniversary 2
10 June International Year of Forests (Europa stamps) 2
September University of Oslo bicentenary 1
16 September Comic strips centenary 4
18 September Norwegian popular music lll: female performers 4
11 November Posthorn 1
11 November Christmas stamps (booklets) 2

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