5 String upright bass - Ross Doublebass 2 - YouTube
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Christopher 5 String Double Bass - YouTube
Sam Shen SB200 - Gemunder 5-string | Bassviolinshop
Amazon.com: Dselvgvu Wooden Miniature Double Bass with Stand,Bow and Case Mini Contrabass Replica Mini Musical Instrument Collectible Miniature Dollhouse Model Home Decoration (5.71"x2.17"x1.38") : Everything Else
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2010 Upton Professor 7/8 flatback 5 string - Steve Swan String Basses
BSX Bass Allegro 5-String Acoustic-Electric Upright Bass | Music & Arts