More pictures of nbpw
![Springer MRW: [AU:, IDX:]](https://i0.wp.com//6a2dc00232f42a5f3430d6ba0b169892ce61255877ec3747fb8aa6053a60012e)
![PDF] Surface Coating Technique of Northern Black Polished Ware by the Microscopic Analysis | Semantic Scholar](https://i0.wp.com/d3i71xaburhd42.cloudfront.net/ee046f86c24d8146465489c71a30e755f3ae3721/15-Figure11-1.png)
![Springer MRW: [AU:, IDX:]](https://i0.wp.com//d742855d6007727ea1a082bece763e59d5553894bf4f5e778b7c2a493f971693)
![Springer MRW: [AU:, IDX:]](https://i0.wp.com//6786dbbb394427612b2c5fb862f5d746aa105eefbc54ab05b8749af2c4d4aef9)
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