Hello!
Normally, the soldiers of the "Landwehr-Bezirks-Kommandos" (Singular: Landwehr-Bezirks-Kommando) had the number of the Brigade upon their shoulder boards.
In areas with a bigger population, the "Landwehr-Inspektionen" (Singular: Landwehr-Inspektion) with the gothic letter of the capital, were set-up.
Those were:
1886: B for Berlin (III.AK)
1907: D for Dortmund (VII.AK), E for Essen (VII.AK)
1912: B for Breslau (VI.AK), C for Cöln (VIII.AK), A for Altona (IX.AK)
1913: I for Insterburg (I.AK), B for Bromberg (II.AK), H for Halle (IV.AK), P for Posen (V.AK), D for Düsseldorf (VII.AK), H for Hannover (X.AK), E for Erfurt (XI.AK), S for Straßburg (XV.AK), M for Metz (XVI.AK), G for Graudenz (XVII.AK), A for Allenstein (XX.AK), Saarbrücken (XXI.AK), D for Dresden (XII.AK), S for Stuttgart (XIII.AK), K for Karlsruhe (XIV.AK), C for Chemnitz (XIX.AK), M for München (I.b.AK), L for Landau (II.b.AK), N for Nürnberg (III.b.AK)
Here is a nice example of a "Bezirks-Feldwebel" of Landwehr-Inspektion Essen (my hometwon...).
He also wears the China-Medal.