Archive of Collections



Details and Image



Item#TypeModelType No.Version No.MakerCountryMaterialScale LengthDateCondition
LAW022Linear
9-K
Music Transposer
LawrenceUSABoxwood w/white painted surface and printed scales
"9"
1946
C4

Notes: Slide rule for constructing chords in any key & transposing one key to any other.

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