According to Kjellson: Red marks the planets (6 + moon), blue and black two different zodiacal systems. Around the perimeter are 37 figures, one for each 10-day period of the year, whereof one figure is half size (= 5 days). Hieroglyphs tell which planets are depicted: Venus between Pisces and Aquarius, Mars is standing on the back of Capricornus, Saturn is between Libra and Virgo, Mercury between Libra and Cancer and Jupiter between Leo and Gemini. The moon is located between Aries and Pisces and is shown as a circular plate with an eye. A big planet is resting on Libra and is not identified. [I guess it is Earth.]

The double zodiac Kjellson explains like this: The locations of the planets points to the time 4,700 BC. A change in the plane of the Ecliptic by 15^o and in the pole by 21^o give exactly these zodiacs; the blue is the old one with Sothis in a ship, the new black one has Leo on a ship. The distance between the old cow of Sothis and the new Taurus is exactly the same as that between the old Leo (looking backwards with front paws on a box) and the new Leo on a ship. Also as the distance between the blue little man on the tail of the old Leo and the new (uncoloured) little man on the tail of the new Leo, as that between the blue maiden holding two urns and the uncoloured little figure with one urn (located between Gemini and Tarus) and as that between the bird in the blue circle and that on the back of black Sagittarius.