Very rare and rather important tractate by Royalist anti-Cromwellian divine, Thomas Swadlin. He had been removed from his living and imprisoned by Cromwell and the Puritan Parliament. From prison he appears to have issued the present letter, anonymously, to John Glynne, a Welsh Lawyer who became Lord Chief Justice under Oliver Cromwell. Glynne himself was a Presbyterian. It drips with sarcasm; Glynne had in fact issued the orders that led to Swadlin and other Anglican divine's imprisonment. 

In the work, Swadlin attempts to move the Presbyterians to return power to the Monarchy in exchange for a guarantee of religious liberty, therefore ending the ongoing Civil War. 

Swadlin, Thomas. A Letter from an Independent, to his Honoured Friend, a Presbyterian of London. London. No Publisher. 1645. 8pp.

As issued with no general title; none of the extant editions have one. 8pp. Good +. Now housed in archival wraps after being professionally removed from an important sammelband of works on religious liberty, the English Civil War, etc.,