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Brief Summary of Kasori B

Late Jomon Period (2,000-1,000 BCE)


Conceptually, the Kasori B1 style are consistent in Kanto region; however, beginning from Kasori B2, there are differences between the west Kanto region and the east Kanto reigon. 


 (Kobayashi, Tatsuo. Sōran Jōmon Doki: Handbook of Jomon Pottery. Shohan. pg. 602)


Common forms:

  • Deep pots
  • Shallow pots
  • Spouted pots
  • Jars
  • Bowls
  • Boat-shaped bowls


- Kasori B I style

  • wavy rims 波状口縁
  • register of horizontal straight or undulating incised lines
  • cord-marked patterns made by a cord-wrapped stick 撚糸文

We usually see these potteries with wavy rims 波状口縁 (3 crests in general) [3, 7]. Most of the time, the rim has little decoration; however, in some cases, we also see there are perforations or indentations on or around the crest [3. 4, 6].

Around the upper part of the body, there is usually a register of horizontal straight or undulating incised lines as decoration [3, 4, 5, 6, 7].

Below is decorated with cord-marked patterns possibly made by a cord-wrapped stick 撚糸文 [3, 4, 5, 6, 7]. 


- Kasori B II style:

  • proto-spout form rim crest
  • sharpened rim crest
  • register of horizontal straight or undulating incised lines
  • punctate pattern 刺突文
  • intersecting incised lines

Wavy rims still persist but, in some cases, the tips of the rim crest are rendered in a proto-spout form. In some cases, the tips are sharpened instead of smoothly rounded.

Around the rim, now we see an increasing number of punctate pattern 刺突文. This kind of pattern becomes more pronounced and continued to exist in Kasori B III style. Potters also tend to use this pattern as a divider between different zones of decoration.

In addition, the register of horizontal incised lines is still present in some cases[12, 13, 16, 17]; but we do see a preference to decorate the body with intersecting incised lines[19, 21, 22, 26, 27, 28, 29].


- Kasori B III style:

  • spout-form crest
  • intersecting incised lines
  • punctate pattern 刺突文
  • zone cord-marking patterns 磨消縄文

Wavy rim there are instances that the whole crest turn into a spout [36, 37]. 

Punctate patterns are still prevalent at the time [32, 39, 40, 41, 42, 43].

The intersecting incised lines around body also exist; however, many potteries are now using zone cord-marking patterns in contiguous arc shapes to decorate the body [41, 44, 45].


(Rim sherd, Kasori B style, https://www.penn.museum/collections/object/175011)

- Punctate pattern around rim and body

- Patterns made by rolling a cord-wrapped stick on body


(Rim sherd, Kasori B1 style, https://www.penn.museum/collections/object/187734)

- Horizontal registers around body

- Spout-like rim


 (Kobayashi, Tatsuo. Sōran Jōmon Doki: Handbook of Jomon Pottery. Shohan. pg. 598)