CH 1982-85 DXII 1-5 Symbolic representations and supplementary value, Set cancelled

Switzerland 1982-85 DXII (Official Stamps - World Intellectual Property Organization - OMPI/WIPO - Organisation mondiale de la propriété intellectuelle, Genève)
Symbolic representations and supplementary value, 5 values, SBK DXII 1-5, Michel 1-5,
complete set cancelled