LEWTHWAITE double bass copper wound natural gut E string | Reverb
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Upright Double Bass Gut Strings,,Upright Double Bass Gut Strings Manufacturers
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Off Ramp Boys on Twitter: "I just installed a set of Gut-A-Like Swingmaster bass strings! Wrapped E & A, plain D & G. Different from Helicores! https://t.co/T9PjT5FT29" / Twitter
Gut strings, a work in progress. | David van Ooijen