Antigua and Barbuda 1998 Inventions of 20th century

From Stamps of the World
  • Issue date: 10th November 1998
  • sixteen values in two sheetlets of eight, and two $6 values in miniature sheets
  • Designed by:
  • Printed by:
  • Print process: offset lithography
  • Perforations: 14 x 14
  • Stamp format: Miniature sheet format height 76mm x width 106mm

Inventions of the 20th Century (new Millennium series)

Sheetlet of eight stamps

$1 x 8
$1 x 8

Miniature sheets

$6 miniature sheet Hans Geiger (radiation counter)
$6 miniature sheet William Shockley (transistors)