This is a platter.
Stoneware 1300 degrees Celsius. May spark and explode in a microwave because it's full of iron bearing rocks. May bully other crockery if left unsupervised in a cupboard environment. Possibly Incontinent. Hand wash. Made from New Zealand. Stamped STEER like the brand on a colt's arse.
Approximate Measurements Including Detail:
L-16.5cm, W-13.5cm, H-12.5cm