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Liechtenstein 2015 Year of Light Science Unique Unusual Stamp
Liechtenstein 2015 Year of Light Science Unique Unusual Stamp

Liechtenstein 2015 Year of Light Science Unique Unusual Stamp

$ 2.74

Availability: 91 in stock
  • Year of Issue: 2015
  • Country/Region of Manufacture: Liechtenstein
  • Item must be returned within: 30 Days
  • Certification: Uncertified
  • Place of Origin: Liechtenstein
  • Modified Item: No
  • All returns accepted: Returns Accepted
  • Grade: F/VF (Fine/Very Fine)
  • Condition: Fine Mint never hinged stamp
  • Quality: Mint Never Hinged/MNH
  • Type: Commemorative
  • Return shipping will be paid by: Seller
  • Refund will be given as: Money Back
  • Topic: Science

    Description

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    The special stamp “Play of Light”  permits the observer to conduct three experiments relating to the anniversaries mentioned. The background of the stamp glows in the dark owing to its fluorescent colour. It turns into a source of light if it was exposed to sunlight beforehand. The wave theory can be observed if the stamp is held up to a source of light. The micro-perforations in the paper become easily visible as the light waves are diffracted through the small openings. For the experiment on quantum theory, the light pink colour behind the ball was printed with a special colour. When irradiated with UV light, the colour turns from pink to violet.
    Safely shipped in a rigid mailer by Registered airmail with tracking 24 x 7.