Austria, 1850 Arms 1kr Yellow, Hand-Made Paper, margins large to just touching at bottom, tied by neatly struck "K.K. Feldpost, Marburg, 16/10" cancel on 1858 folded letter sheet to Graz, receiving backstamp, Very Fine, use on Feldpost is quite scarce. Michel No. 1 X a. Scott No. 1  Estimate $300 - 400. $0 (Image)