Assists in creating 3d scratch holograms (aka abrasion holograms or chatoyant holograms). They can be created on acrylic or metal sheets using only an adjustable compass as described on Bill Beaty's website: http://www.eskimo.com/~billb/amateur/holo1.htm
30 Day SummaryMar 25 2025 — Apr 24 2025
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12 Month SummaryApr 24 2024 — Apr 24 2025
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