There are at least two artists with the same name:

1. Dull Knife was a 70s German krautrock band that released one album, Electric Indian, in 1971 .Line-up: Gottfried Janko (Keyboards, Vocals), Martin Hesse (Bass), Klaus Zaake (Drums, Percussion), Christian Holik (Guitar)
2. Dull Knife (Brighton, UK) formed at the back end of 2013 after a few living room jams. George and Jack met through 60s psych band The Pretty Things, they make up the rhythm section and have a mutual interest in delta blues, 60s garage psych and outlaw country. Most of their repertoire was penned on the road in hotel rooms and in Jack's living room.
3. Dull Knife (Seattle, WA) Began in early 2000's with core members are Garek Druss (A Story of Rats,Tecumseh, Stenskogen) and Adam Svenson (Karnak Temples Little Claw, Du Hexen Hase) , which at one time also included Charlotte AuRevoir aka Charlotte Blodvin-Hjärta (Kount Fistula, Arachnid Arcade, Liten Nattskärra). Originating as a super-jam between key players of the drone/noise/weird scene of Seattle, Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.