These lamps were not made as a pair, and they are not identical. Both are green-glazed with exposed wick channels for spouts. They are likely from the mid 18th century. This was a common form used for a long period of time. The smaller lamp is 2.5” high x 3.8” wide and the larger lamp is 3.1” high x 2.25” wide at the base and 4.25” from handle to wick. They both have wear from use, and kiln marks. These were common household items. We do not have this form in red earthenware.