17 May (Luxembourg ) within release International Year goes into circulation Stamp Int. Year of the Elderley face value 16 Luxembourgish franc
Stamp Int. Year of the Elderley in catalogues | |
---|---|
Michel: | Mi:LU 1477 |
Yvert et Tellier: | Yt:LU 1427 |
Stamp is vertical format.
Also in the issue International Year:
Stamp Int. Year of the Elderley it reflects the thematic directions:
Special Occasions
An optical instrument is a device that processes light waves (or photons), either to enhance an image for viewing or to analyze and determine their characteristic properties. Common examples include periscopes, microscopes, telescopes, and cameras.