This series contains counterwrits of the many writs supersedeas which issued out of Chancery addressed to sheriffs, justices of the peace, justices of assize and others, countermanding writs of error, exigi facias, capias, de excommunicato capiendo, and attachias.
The bulk of the series is made up of writs supersedeas concerning sureties of the peace produced upon the writ supplicavit or similar authority. The series also includes a few counterwrits of warrants for the release of prisoners, particularly those imprisoned on suspicion of theft.
The series takes its name from the press mark used on the file covers from the mid-fifteenth century onwards, the rough drawing of a stool. Most of the records were formerly included in C 47 and C 202