Scraperboard definitions

Scraperboard

A board prepared with black indian ink over a china clay surface. Scraping away the ink to expose the china clay surface produces drawings.
Found on http://www.encyclo.co.uk/local/20829

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Scraperboard

A cardboard that is covered with plaster, white clay or chalk mixed with glue. It may be left white
Found on http://www.encyclo.co.uk/local/22428

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