| No. | 30 |
| Description | Okhotsk pottery |
| Site | Tokoro-chashi Site: on the clay floor of Pit House found in Trench T |
| Size (cm) | H. 36.8 |
| Period | Late stage of Okhotsk culture |
| Date | 8-9th century |
| Possessor | Tokoro Research Laboratory |
| Comment | Haritsuke-mon series pottery from the Late Okhotsk culture, and a typical model of Group e according to Fujimoto’s chronology (1966). The main decoration patterns are the appliqué patterns formed by a unit of straight and wavy lines, which is regarded to be later than Group d. |