1915, G.R. MAFIA Handstamp in violet: 2½h., block of eight from the lower sheet margin, with part inscription “(Deut)sch-Ostafrika” and HAN “H3072.11”, mint never hinged, with hinge in the margin only, the left stamps with faint diagonal crease, otherwise fine, a scarce multiple, certificate Brandon (2004) (Michel 1b)