[Pramāṇa](https://indike.org/pramana/) › [Physical](https://indike.org/pramana/inp) › [Artefacts](https://indike.org/pramana/inp.artefact) › [National Museum, New Delhi](https://indike.org/pramana/inp.artefact.nm) › Square lignite seal # Square lignite seal Square lignite seal with a perforated knob and impression showing geometrical pattern in incised lines, it may be lapidary characters. - **Kind:** artefact --- Source: [https://indike.org/pramana/inp.artefact.nm.2002-9-25](https://indike.org/pramana/inp.artefact.nm.2002-9-25) · Pramāṇa