Moderate difficulty suitable for most players
Historic Postal Stamp Processing Crossword Puzzle for High School is a hard crossword puzzle with 9 clues covering . Play it online for free below, or create your own crossword with our free crossword maker.
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Historic Postal Stamp Processing Crossword Puzzle for High School
Challenge your knowledge of advanced historic postal stamp processes and methods in this hard crossword puzzle designed for high school students interested in philatelic technology.
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Across
- 1. Printing method using flat stone or metal plates for early stamps
- 2. Application of adhesive layer on the back of stamps for sticking
- 4. Photo-based lithographic process improving stamp image clarity
- 6. High-speed rotary printing method for large-volume stamp production
- 8. Detailed hand-cutting method used to make durable printing plates
Down
- 3. Corrosive technique used to create detailed metal stamp plates
- 5. Process of punching holes between stamps for easy separation
- 7. Engraving technique producing raised ink impressions on stamp surfaces
- 9. Embedded design in paper used to prevent forgery and identify issue
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