NHER 12188 (Cropmark and Earthwork record) - Site of medieval or early post medieval post mill near Downing Farm

Windmill site claimed by St Joseph on list of air photographs at this very approximate grid reference.
No windmill found in records for this area by [1]. Is this a mistake for NHER 13346?
E. Rose (NAU), 24 March 1982.

No, it is not. St Joseph air photograph (obtained by NAU 1982) shows at corrected grid reference a circle with crosstre (NAU), 29 April 1982.

March 2006. Norfolk NMP.
NMP mapping has led to the alteration of the central grid reference of the site from TG 4881 1912 to TG 4884 1913.

The post mill site described above is visible as a cropmark on aerial photographs (S1)-(S3). The site, which comprises a ring ditch surrounding a central cross-shaped pit, is typical of levelled post mill mounds, usually dated to the medieval or early post medieval period. The proximity of further mill mounds in the area (NHER 43398 475m to the southeast) suggests either the former existence of several mills, or the erection of a succession of structures on different sites. Like the ring ditches to the southeast (also NHER 43398), the mound may have originated as a Bronze Age round barrow. The location is suitable for a prehistoric funerary monument, but its apparent isolation from the other barrows and the character of the ring ditch (a substantial, rather irregular ditch with two probable causeways, see below) are perhaps more typical of a purpose built mound. The site is surrounded on its north, west and south sides by the cropmarks of at least two phases of field system (NHER 13073 and 43399) but its relationship with these sites is not known.

The ring ditch is roughly circular in plan and measures approximately 24m in diameter. Narrow breaks in the ditch circuit on its north and east sides are flanked by slightly swollen ditch terminals and have the appearance of genuine causeways.
S. Tremlett (NMP), 16 March 2006.