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Chanzon 10 Pcs Single Sided Copper Clad Laminate PCB (7x10 cm 4x2.7 inch) Copper Plated Universal Circuit Prototype Board for Etching DIY Pcbs Kit: Amazon.com: Industrial & Scientific
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18th-century copper printing plate by James Trenchard, depicting the arms of Massachusetts and New York - Rare & Antique Maps
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Griffith University - Products & Services - Film, Art, Photo, Architecture Supplies/Services - Fine Art - Print Media Materials - Copper Plates for Etching (0.9mm gauge)
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