Artefact Description: Cuboid shaped structure all faces except sides dark brown glazed, inscriptions on front corners slant cylindrical stopper cube head fixed inside structure, raised letters on front & back
Initial identification: acid piping valve
Material: earthenware
Inscriptions, makers marks etc: top = 14; front = Hathernware; back = 25 m/m
Context or Associated Features: Recovered from cana; fill south of acid factory
Recovered during/by: Decontamination of canal by mechanical excavator
