1. (Stephen Allee per Keith Wilson, June 12, 2008) As per Jenny F. So, Jade Project Database, added Period (Shang 商 dynasty), Date (ca. 1600--ca. 1050 BCE); changed Object name from "Blade (ko [ge] 戈)" to "Ceremonial object"; changed Title from "Chinese jade; ko [ge] 戈" to "Dagger axe (ge 戈)." Added Dimensions per Christine Lee from Jade Project Database.
2. (Jeffrey Smith per Keith Wilson, July 17, 2008) Ceremonial object added as secondary classification.
3. (Najiba Choudhury per Keith Wilson, January 9, 2020) Title changed from "Dagger-axe (ge)" to "Dagger-axe (ge 戈)"; added Chinese Caption by Jingmin Zhang.