चतुष्पदद्विपदानामपि हि रूपलिङ्गसामान्यं भवति किमङ्ग पुनरेकयोनिद्रव्यकर्तृप्रसूतानां कुप्याभरणभाण्डानामिति ॥ कZ_०४.६.१० ॥
catuṣpadadvipadānām api hi rūpaliṅgasāmānyaṃ bhavati; kimaṅga punar ekayonidravyakartṛprasūtānāṃ kupyābharaṇabhāṇḍānām iti ।
即便在四足与两足动物之间,也可能在形态与识别标记上相似;更何况是由同一来源材料、同一工匠制作的制成品、饰物与器皿等货物——也就是说,它们可能看起来一模一样。
That visual similarity is common; therefore courts must not rely solely on appearance to identify ownership of manufactured goods.
As an analogy: if even living beings can look similar, manufactured items from the same material/maker can be even harder to distinguish without corroboration.