2 Euro KM#323 8.5000 g., Bi-Metallic Nickel-Brass center in Copper-Nickel ring, 25.75 mm. Subject : 100 Years of Royal Meteorological Institute Obv: The inner part of the coin displays in its centre the number 100 with the first zero encircling the abbreviations 'KMI' and 'IRM' and the second zero representing a sun. Isobars, raindrops and snowflakes are depicted to the left of the sun. The year '2013' is displayed in the upper rays of the sun and the nationality 'BE' is indicated in the lower rays. The mark of the mint master and the mark of the Brussels mint, a helmeted profile of the Archangel Michael, are displayed under the '1' of the number '100'. The coin's outer ring shows the 12 stars of the European Union on a background of concentric circular lines. Rev: 2 on the left-hand side, six straight lines run vertically between the lower and upper right-hand side of the face, 12 stars are superimposed on these lines, one just before the two ends of each line, superimposed on the mid - and upper section of these lines; the European continent ( extended ) is represented on the right-hand side of the face; the right-hand part of the representation is superimposed on the mid-section of the lines; the word ‘EURO’ is superimposed horizontally across the middle of the right-hand side of the face. Under the ‘O’ of EURO, the initials ‘LL’ of the engraver appear near the right-hand edge of the coin. Edge: Reeded with 2 * *, repeated six times, alternately upright and inverted. Obv. designer: Denayer de Hofstade Rev. designer: Luc Luycx