The kanji 匁 represents a unit of weight, specifically the momme. It is a traditional Japanese unit of measurement.

・On-yomi (音読み): men ・Kun-yomi (訓読み): momme 匁 (もめ)

⚫︎ 金匁 Translation: momme of gold ⚫︎ 綿匁 Translation: momme of cotton ⚫︎ この宝石は五匁です。 Translation: This jewel weighs five momme.

The kanji 匁 is a phonetic loan character. It was borrowed to represent the momme unit. The character itself is not a pictograph or ideograph that visually represents the object it measures. Instead, the phonetic structure of this character was adopted to indicate the pronunciation and meaning of "momme." In essence, it's a character used for its sound rather than its visual representation of an idea.