Hemmi 257 Bamboo Slide Rule from Japan
The Hemmi 257 is a 10-inch bamboo slide rule with Mannheim and trigonometric scales for advanced engineering calculations. It qualifies under HTS 9017.20.4000 as a traditional mathematical calculating instrument valued for precision and collectibility. Crafted from laminated bamboo with metal cursor for durability.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
Import Tips
• Document bamboo lamination process and scale precision to distinguish from decorative wooden articles
• Collector's items require origin certificates; HTS classification unaffected by age but affects valuation
• Avoid classifying with protective cases; separate leather/metal cases go to Chapter 42