Marshall Amps on Twitter: "The legendary @ChrisShiflett71 of @foofighters warming up backstage through a new Origin 20C. Happy Marshall Monday. #liveformusic https://t.co/i7S59bxuWj" / Twitter
Marshall: ORIGIN 20C Combo. The proper demo. - YouTube
Test Marshall Origin 20C ampli combo à lampes pour guitare électrique - Audiofanzine
Marshall Origin 20C - In Depth Demo - YouTube
Origin20C - marshall.com
1967 20c Prominent Americans: George Catlett Marshall for sale at Mystic Stamp Company