Stamps Year 1991

Centenary of Three-Phase Energy Transmission.
Nemesio Ramirez Lemos
50 years of the Song of Germany, Hoffmann von Fallersleben.
Nemesio Ramirez Lemos
75th Death Anniv of Max Reger (composer).
Nemesio Ramirez Lemos
750th Anniversary of the Battle of Legnica.
Nemesio Ramirez Lemos
125 Years of the Lette Foundation (women's professional training institute).
Nemesio Ramirez Lemos
"Dragonflies" Darter, sanguineum Sym.
Nemesio Ramirez Lemos
Hawker's Dragonflies, Aeshna viridis.
Nemesio Ramirez Lemos
"Dragonflies"Spinster fountain Cordulegaster boltonii.
Nemesio Ramirez Lemos
Centenary of the death of Ludwig Windthorst (politician).
Nemesio Ramirez Lemos
750 years of the Pharmacist profession (FRG).
Nemesio Ramirez Lemos