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Across
  1. 3. Photo collection
  2. 6. Mailed travel greeting
  3. 9. Video tape format
  4. 11. Old-fashioned light source
  5. 13. Pre-TV entertainment
  6. 14. Public telephone
  7. 16. Tape music format
  8. 18. Animated picture book
  9. 20. Playground equipment
Down
  1. 1. Analog sound medium
  2. 2. Candy dispenser
  3. 4. Keepsake album
  4. 5. Outdoor cinema
  5. 7. Cheap sweets
  6. 8. Instant photo brand
  7. 10. Old beverage counter
  8. 12. 50s fashion
  9. 15. Instant photo snap
  10. 17. Tape music medium
  11. 19. Arcade game