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Used guitar purchase, is this a cause for concern? - The Acoustic Guitar Forum
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Vintage 1969 M G Contreras Classical guitar SPAIN | Great Guitars Australia
Manuel Contreras 1a Classical Guitar (1984)
Luthier Manuel Contreras Doble Tapa 1987 – Spain – Classical concert guitar
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Classical Guitar Luthier Interview: Manuel Contreras (Spain) | Kazu Suwa | Classical Guitarist
M.G. CONTRERAS Classic 1960's Guitar - Etsy
