Flat, thin iron disk (SF 09-159). The object is corroded by rust and its edges notched in two spots. Its function is unknown. The disc was found in a cluster (cluster D) with an iron bangle (SF 09-158) and two stones whose surfaces showed evidence of grinding. The cluster was part of a wider feature (clusters A-D) that archaeologists interpret as a shrine, which overlaid stratified deposits in a metallurgical workshop (mound 6). Scale in cm. Width: 8.1 cm. Thickness: .2 cm. Weight: 29.8 g. Site Ngre Kataa. 9 June 2009.