The kiln was excavated by the Peterborough Museum Field Club following its discovery at the Helpston Stone Quarry.
The structure was built into the solid limestone to a height of 2.45 metres, with a diameter of 2.75 metres tapering to 2.1 metres at the floor. Construction was of limestone blocks. A hint of corbelling suggested closure by a dome. Occupation layers contained pottery and coins of mid to late-fourth-century date.
Adrian Challands, 'A Roman Limekiln at Helpston', Durobrivae - A Review of Nene Valley Archaeology : 4 (1976), p. 22-23.