The SELK Agenda mentions two communion forms: A and B.
Form A is based on Luther's German Mass of 1526. The Agenda doesn't list the order of the service, but it indicates that the consecration of the elements comes before the Lord's Prayer (which is referenced back to Bugenhagen).
Form B is based on the Brandenburg-Nuremberg Church Order of 1533, which follows Luther's Formula of the Mass of 1523. This form has an eucharistic prayer. The consecration of the elements with the words of institution are removed from the body of the eucharistic prayer. This is the format used in LSB. (LBW and ELW allow the option of the Lutheran or the Roman Catholic placement of the consecration pertaining to the eucharistic prayer.)