गोशीर्षकं कालताम्रं मत्स्यगन्धि ॥ कZ_०२.११.४४ ॥
gośīrṣakaṃ kālatāmraṃ matsyagandhi
(চন্দনের ধরন:) গোশীর্ষক, কালো-তাম্রবর্ণ, এবং মাছের গন্ধযুক্ত।
Because the state needs to recognize and classify all trade-circulating varieties, including lower-grade stock, for pricing and tax purposes.
They limit discretionary appraisal by giving shared, checkable criteria for categorizing consignments.