Test Pit 21 had approximately 10cm of overburden underlying the turf, with an orange clay layer directly underneath. This became a dark orange clay at c.30cm and contained frequent charcoal flecks and frequent small to medium pebbles and cobbles, although this did not form a surface layer as evident in other pits. A small post-hole was noted in the south-east corner of the pit at a depth of c.30cm, with a depth of approximately 50cm. This was filled with a dark silty soil and contained clay patches and moderate small pebbles. A number of artefacts were also recovered from the posthole
fill including a nail, animal bone and Medieval pottery. The entire pit had a moderate amount of metal nails, clinker and slag, and frequent flecks and pieces of charcoal. It produced a fairly large group of 48 sherds representing 44 vessels of mainly medieval and post-medieval date. The earliest is a single Saxo-Norman large Lincolnshire Fine-shelled bowl sherd of late 10th to 12th century. (1)

<1> Beresford M Young J and Southwell Archaeology, 2013, Burgage Earthworks Project Report, pp 24, 50, 70 (Unpublished document). SNT4614.