These rim sherds were excavated from the Lawson site in London, Ontario. The decoration styles along these upper rims, consisting of rows of incised, angular lines, are most prevalent on sites across southwestern Ontario dating to between 1450 CE and 1600 CE. The Lawson site is a fortified 16th century Indigenous site located at the confluence of Medway River and Snake Creek. The site has been known to archaeologists since the mid-1800s and is now an Ontario designated heritage site and part of the Museum of Ontario Archaeology’s grounds.