Euphonium – JP074, JP174, JP274, JP374. Valve Spring Specification. Set of 4 Springs.
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JP374S STERLING 4 valve Bb/F EUPHONIUM 3 + 1 IN SILVER PLATE by John Packer
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A Set of 4 Valve Guides Suitable for John Packer Euphoniums
John Packer JP031 BB Tenor Trombone with Case
