Conrad Graf (1782-1851) was one of the first Viennese makers to built pianos in quantity. His workshop was considered the greatest and most renowned in Vienna. Like many makers in Vienna, he offered his instruments simultaneously for a whole period in 6 and 6,5 octaves versions, and also in different finishes. The case is veneered with walnut, rounded corners on three columnar legs. The front two legs are held togeter with a stretcher supporting the lyre. Inscribed in graphite on the soundboard Opus 704.
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