Europe | 1969 Wilhelm Ostwald and Emil Kocher Booklet of Ten Sweden Postage Stamps Dark green

Description

This collectible booklet of ten postage stamps was issued by Sweden to honor Wilhelm Ostwald (1853-1932) and Emil Kocher (1841-1917), both of whom were awarded Nobel Prizes in 1909.
Date of issue: December 10, 1969
Color: Dark green
Designers: Arne Wallhorn and Lasse S?derberg
Format: Booklet
Emission: Commemorative
Perforation: 12? three-sided
Printing: Recess
Face value: 10 * 45 Swedish ?re
Mint, never hinged condition.