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Sector Mathematical Instrument from Mexico

Brass sector with proportional scales for multiplication, division, and geometric calculations. HTS 9017.20.80 as historical mathematical calculating instrument. Pivoting arms similar to slide rule operation.

Duty Rate — Mexico → United States

14.6%

Rate breakdown

9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico

Import Tips

Historical instrument declarations with age proofs

Avoid modern replica misdescription

Educational end-use statements support Chapter 90