7118 - Coin:

Category 7118 encompasses "Coin," which includes circulating currency and collectible coins. For customs purposes, this category is distinct from other commodities at the chapter level, focusing specifically on items that have been minted as legal tender or are otherwise recognized as currency or collectible numismatic items.

Within Section XIV, Chapter 71, which broadly covers precious materials and their articles, the classification of coin serves a unique purpose. Unlike categories dealing with raw precious metals (e.g., unwrought gold, silver, or platinum) or fabricated articles thereof, 7118 is dedicated to items whose primary characteristic is their function as money or their value as collector's items due to their historical or numismatic significance.

This category is further delineated by its subcategories. Specifically, 7118.10.00.00 addresses coin that is not made of gold and is not legal tender, often referring to older or foreign currency no longer in circulation. The broader "Other" subcategory, 7118.90.00, typically includes gold coin and other coin not specifically classified elsewhere. The introductory subheading "I. PRIMARY MATERIALS; PRODUCTS IN GRANULAR OR POWDER FORM" appears to relate to the processing or raw material forms associated with these coin classifications, although its exact application within 7118 would require further detailed subheadings.