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The highest documented Mozart autograph result in the available records here is £880,000 for the manuscript of the Fantasia and Sonata in C minor, K.475 and K.457, sold in 1990. But the evidence does not support a reliable ranking of eight top results. The examples below are documented high-value sales of Mozart’s handwritten music and letters—not a complete inventory of his possessions or a definitive top eight.
Why there is no verified top-eight ranking
Most of the documented auction evidence concerns manuscripts and letters written by Mozart. Authorship does not establish that every manuscript was an item of personal property in the ordinary sense, and these records do not amount to a comprehensive list of belongings he owned. The examples also mix complete musical works, a cadenza, a short musical fragment and letters.
Prices are not perfectly comparable: the sources use different currencies and describe amounts variously as “sold for,” “price realized” or a hammer price. A hammer price is not the same as a fee-inclusive total. No ranking below is implied.
Documented high-value Mozart autograph sales
| Sale date | Object | Reported amount | What the record establishes |
|---|---|---|---|
| 21 November 1990 | Autograph manuscript of the Fantasia and Sonata in C minor, K.475 and K.457 | £880,000 | Sotheby’s says it sold for this amount and calls it the highest auction price for a single Mozart work in that catalogue description. That is a historical catalogue claim, not a verified current world record. Sotheby’s sale account |
| 2017 | Autograph cadenza for the Sinfonia Concertante, K.364 | £423,000 | Sotheby’s reports the result and notes that only the separately written cadenza survives from Mozart’s autograph of the work. Sotheby’s sale account |
| Sale year not confirmed in the available catalogue text | Six-page working draft for piano duet, K.357/500a | £355,750 | A Christie’s search result gives this realized price; the opened catalogue description confirms the manuscript, not the amount. Christie’s characterizes it as a late draft dated by Alan Tyson to 1791, breaking off after 161 bars and containing frequent erasures. Treat the price as a search-result record, not a fully verified lot-page figure. Christie’s catalogue entry |
| 2023 | Autograph letter to Baroness von Waldstätten | £226,800 | Christie’s and Rare Book Hub report this realized price. The letter is described as dating from shortly before 4 August 1782. Christie’s account; Rare Book Hub record |
| June 2017 | Autograph letter to Mozart’s father | $260,000; approximately £203,000 at the time, as reported | Antiques Trade Gazette reports the Christie’s New York sale and provides the approximate sterling conversion. The dollar figure is the original reported amount. Antiques Trade Gazette |
| 2023 | Autograph letter to a recipient described in the trade report as an unidentified love interest | £180,000 | Antiques Trade Gazette reports the sale and called it the third-highest auction price for a Mozart letter at the time of publication. This is a trade-publication report, not an auction-house result page. Antiques Trade Gazette |
| 2022 | Opening 15 bars of the Andante from the Serenade in D major, K.185 | £100,000 hammer price | Antiques Trade Gazette reports the hammer amount for the Christie’s London sale; it should not be read as a fee-inclusive total. Antiques Trade Gazette |
What these manuscripts reveal beyond price
Drafts and fragments are not the same as complete scores
The K.357/500a piano-duet draft is a working document rather than a finished, pristine score: the Christie’s description notes that it breaks off after 161 bars and contains frequent erasures. The K.185 item is narrower still, comprising the opening 15 bars of an Andante. Their sale prices therefore describe particular surviving autograph objects, not the value of a complete work in a like-for-like comparison.
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Ownership and provenance can span generations
Sotheby’s account of Mozart’s K.164 minuets describes a unique surviving autograph source for that early work and traces its provenance through his sister Nannerl, his son Franz Xavier, Joséphine de Baroni-Cavalcabò, Stefan Zweig and later collectors. Sotheby’s also says Mozart’s widow Constanze retained manuscripts after his death and sold many to publisher J. A. André around 1799–1800. This history helps explain how handwritten scores entered the collecting market, but it does not establish an auction result for the K.164 manuscript in the examples above. Sotheby’s provenance account
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How to read the reported prices
- Keep original currencies visible. The 2017 letter to Mozart’s father is reported as $260,000; the approximately £203,000 conversion is the trade report’s estimate at the time, not a current conversion.
- Distinguish hammer from realized amounts. The £100,000 K.185 fragment result is explicitly a hammer price. The other entries use the language reported by their sources and should not be assumed to share one price basis.
- Weigh source type. Sotheby’s and Christie’s catalogue or sale accounts provide auction-house descriptions; the 2017 and 2022 figures and the £180,000 letter result are reported by Antiques Trade Gazette. The £355,750 figure is particularly qualified because it appears in a Christie’s search result but not the opened catalogue text.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
