Stamps Year 1993

zwergschnauzer dog
Pedro Gruenholz
Mollienesia velifera
Pedro Gruenholz
rescue labrador dog
Pedro Gruenholz
Ramon y Cajal
ALI EL ARFAWI
Diesel engine development
Pedro Gruenholz
Science celebrities
ALI EL ARFAWI
75 Anniv.
Pedro Gruenholz
Armand Calinescu
Pedro Gruenholz
6 years of documentary compilation
Pedro Gruenholz
George Baritiu
Pedro Gruenholz