prov:value
| - It is lawful for the appraisers, or the collector and naval officer, as the case may be, to call before them and examine, upon oath or affirmation, any owner, importer, consignee, or other person, touching any matter or thing which they may deem material in ascertaining the true market value or wholesale price of merchandise imported, and to require the production, on oath or affirmation, to the c
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