This is a translation and critical edition of two documents on the Kapp Putsch and the origins of the united-front policy in the German Communist Party. The documents were written by the kpd leader Paul Levi and their titles and dates are, respectively: ‘Letter to the Central Committee of the Communist Party of Germany’ and ‘Open Letter of the Zentrale of the United Communist Party of Germany’. They are a documentary appendix to our essay ‘Paul Levi and the Origins of (...) the United-Front Policy in the Communist International’, published in this issue of Historical Materialism. (shrink)