Keuffel & Esser Decilon Slide Rule from Japan
The K&E Decilon features decimal-aligned scales for high-precision scientific calculations, popular among physicists and surveyors. Falls under HTS 9017.20.4000 as a specialized mathematical calculating instrument. White celluloid on wood construction with smooth cursor mechanism.
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
• Provide scale function charts; customs may test functionality to confirm calculating purpose
• Historical replicas must specify reproduction scales identical to originals