1/2 Gr. orange, when correctly stamped single franking on folded cover (without sides left and on right) to the country postal district of one's own with aptiertem Prussia K1 "RHEINSBERG 15 4 74" (OPD Potsdam) to Linow, back two issue cancels with dates of 1.54E+01 or 1.64E+01, little patina traces, Michel 100.-,+ cancel valuation