Upton Bass ff Hole Upgrade: "Gotlieb"

Upgrade any Upton Bass model with customized ff holes. These ff holes were copied off a double bass that we restored, a nice large bass, most likely German made with only the name "Gotlieb" found inside in pencil. They look like a cross between our "Czech" ff holes and the "Tyrolean" ff holes as they share attributes of each.

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