This commemorative stamp was issued by the Soviet Union in 1958 to celebrate the centenary of the first Russian postage stamp (1858–1958). The design features the Leningrad State Collection building, framed in elegant architectural detail, marking its importance in philatelic history. The central panel highlights the inscription “100 лет русской почтовой марки” (100 years of the Russian postage stamp). Printed in rich brown and sepia tones, this 40 kopeks issue reflects Soviet pride in philately and the legacy of postal communication. A meaningful addition for collectors interested in Russian postal history and commemorative issues of the USSR.