70x50 cm Mount with an A3 paper size central Window - Bevel Cut CMC Apertures

It is a Bevel Cut Aperture. This has been cut a 45 degrees by our computerised mount cutter / CMC. You are buying a 70x50cm mount (700.00mm x 500.00mm) with 1 window cut in the centre at A3. Through at least a decade of using our current boards we are yet to hear or see them brown like cheaper non acid free boards.

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