CrosswordMint
Arcane Relics of Forgotten Mechanisms
Challenging puzzle for experienced crossword solvers
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Across
  • 1. Historical blueprint process ink fading from architectural drafting
  • 2. Rack of arrows, obsolete as warfare modernized beyond archery
  • 3. Medieval wooden debt recorder, split to prove transaction authenticity
  • 6. Ancient celestial calculator once guiding mariners by stars
Down
  • 4. Handy sailor's spike used for splicing ropes, rusty today
  • 5. Instrument once used by navigators to determine time at night
  • 7. Vacuum device detecting light via photoemission, now eclipsed

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