Records of the court of King's Bench and related courts from 1194 to 1987 relating to litigation in which the state has an interest.
The records have been divided into Crown Side records and Plea Side records.
The following series numbers have not been used: KB 38, KB 40 - KB 100, KB 108, KB 110, KB 117, KB 120, KB 129 - KB 132, KB 142 and KB 143.