| Verzamelbundel met 7 composities van Friedrich Wilhelm Rust (1739-1796), [autografische partituren, autograph scores] [Rism 702.003.464] [B Bc 27.158-27.164]
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| Potloodtekening door Wagener, gekleefd in de verzamelbundel met autografen van Rust. Wagener was bevriend met de kleinzoon van de componist. |
| Drawing in pencil by Wagener, glued in the collection autographs by Rust. Wagener was on friendly terms with the grandson of the composer. |
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