Denis O'Connor, lidded jar, with impressed decoration. firing crack (stabalised). Impressed mark. Height 12.40 in. Diameter 5.91 in.
- Firing Crack - A firing crack is a crack in a porcelain or stoneware item that occurs whilst the item is in the kiln.They are usually caused by faulty design, where one part is thicker than the surrounding area, and being thicker it cools more slowly, setting up a stress with the surrounding area. Firing cracks are not often seen on modern mass produced porcelain, as the damaged items are discarded during prooduction. However they are seen in earlier items and artisan-produced objects.
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