Void pantograph
A fine-line background print pattern on a cheque or secure document that reveals the word 'VOID' when photocopied or scanned, due to the moiré pattern arising from reproduction at a different halftone resolution.
A fine-line background print pattern on a cheque or secure document that reveals the word 'VOID' when photocopied or scanned, due to the moiré pattern arising from reproduction at a different halftone resolution.
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