or
Model H. Ergaster Knm-Er 3733 Cranium^ Model H. Ergaster Knm-Er 3733 Cranium, 1.75 MYA, with dentition was discovered by B. Ngeneo in 1975 in Koobi Fora, Kenya. Several teeth are intact, but no mandible was ever found, Size: 19.1L x 13W x 13.5H (cm)