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Reference Library Makers

Choose a maker

Please select a maker to narrow your search, or scroll down to view information attributed to Knopf.

How much is my Knopf Instrument worth?

Brompton's is delighted to offer complimentary Instrument appraisals for insurance, probate or sale purposes. If you currently own a Knopf Instrument, click the button below to receive a free valuation:

Instrument Valuation