Silver Argylles
Eighteenth and 19th century silversmiths produced a tea or coffeepot form gravy warmer known as an argyll, that used a variety of means to keep the gravy warm. The form, with handle and spout, is sometimes spelled as Argyle. Those argylles using hot water as the warming agent typically had double exterior walls, or a compartment created by a false bottom, or a central vertical tube to hold the hot water. Occasionally an argyll is found with a central cylindrical tube in which is placed a hot iron rod.