3 penny - 20 Mark Ludwig, peace printing, complete set from 16 values. Most smaller values Infla expertized, 5 Mark expertized Helbig BPP, 10 Mark with postmark date 4.10.1915 twice signed Helbig BPP and key value 20 Mark with postmark date 1. June 1915 expertized Helbig and pennyer BPP. Michel 900.-