What is an auction estimate?

Estimates & Valuations · Revised 3 August 2026

A brass loupe and folding rule laid on a typed valuation report beside a closed antiquarian book

An estimate is a range, expressed as a low and a high figure, within which the hammer price is expected to fall. It reflects recent comparable results, the condition and rarity of the object and the current appetite of the market. It is an informed opinion, not a guarantee.

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