"Drawing Pens For Musical Staff"
Rolling pen for musical stave "Musica Stylo" invented by A.S. DEMARSAY of the National Theater of the Opéra Comique, patent N ° 644-122 and manufactured by GREVISSE in Colombes around 1930.Device for tracing staves made up of a wooden handle, a yoke with ink pad and three interchangeable knobs for staves of different heights.
In its original box with its instructions for use.
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