Are yams and sweet potatoes the same?
stand or support for utensils before or on the fire. Usually made of wrought iron, the most common variety, from the 17th century, stands on three legs and has a circular plate with perforated decoration, often in the form of a date. Another early type, short-legged, stood in the fire to support a cast-iron pot. Later, in the second half of the 18th century, trivets designed to be hung from fire bars were made. These were of two types: an oblong, standing trivet with a handle at one end and projections to fit over the fire bars at the other, and a plate that could be attached to the fire bar. Some of the latter were hung inside the grate supporting a vessel over the fire