Mistery object

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Across
  1. 4. It's a glass box
  2. 5. It looks like a box
  3. 6. Prof's grandma had it
  4. 7. mistery object 5
  5. 8. mistery object 7
Down
  1. 1. mistery object 1
  2. 2. it's made of brass
  3. 3. Shakespeare father had it