If you read the text on the back of the card upside down you find the following: stelvisiondotcomslashskydashmap. Translating the symbols into symbols gives us the website www.stelvision.com/sky-map. On this site, you can map out the stars in the sky for any given moment in all of history, anywhere in the world. We are therefore now searching for a moment of history, at a certain place in the world.
The two men displayed beside the ‘PLACE POSTAGE HERE’ box are president Reagan and president Gorbachev. They had a meeting in the latter part of the Cold War, laying the basis for the first Nuclear Forces Treaty. That meeting was held in Hofði house in Reykjavik, Iceland. This shows you the place you need to map out on the Sky Map.
Between the heads of the presidents ‘DAY ONE’ is written. The Höfði meeting was held on 11-12 October 1986. Day one of the Höfði meeting is therefore the 11th of October 1986. As for the time, why don’t you just check your watch? The watch on the card displays 11 o’clock, and in the borders of the watch are the letters ‘AM’ written. We have found the 11th of October, 11AM as our time.
The map of stars we find matches the stars on the front. The arrow has just been decorated a lot on the card, emphasizing it. It points at the bottom row of symbols, indicating that that is where you should stars. Afterwards, we move counterclockwise, as the arrow does too.
The symbols on the card match the symbols of constellations on the sky map. There is has to be a connection between those two.
The dots on the constellations indicate a specific star. The colour of the dot is based on the colour of the name of the star, if its name is written in green, the dot becomes green too. Essentially, the symbols translate into one specific star. For example, the very first symbol points at the Sun, of the constellation Virgo.
The solution word has five letters, and there are five series of codes (as the green vertical line separates the top row of symbols). Therefore every row of ‘stars’ should form one letter. How can a series of points on a map form a letter? I think you are connecting the dots already. If that wasn’t clear enough: connect the stars that every symbol points at, and each of the series of constellations will form a letter, that together create the solution word. For example, the bottom row of stars (Sun-Hydra3-Pollux-Arcturus2-Draco1-Capella) forms the S. If you follow this method through, you should get the letters S, H, I, N and E moving counterclockwise. The solution of this card is therefore ‘SHINE’.