VALÉORINE London

What makes an autograph letter valuable?

Autographs · Revised 3 August 2026

A nineteenth-century autograph letter with its cover and a fragment of red wax seal

Content above all. A letter in which the writer discusses their work, their convictions or a documented historical moment is worth a multiple of a routine note of thanks by the same hand. Length, the presence of a full signature, the integrity of the sheet and an unbroken provenance then modify the figure.

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