Württemberg, 1851, 3kr black on ocher-yellow, type V. In combination with 1857, 6kr green on folded letter sheet to Linz, Austria, tied by "Stuttgart, 5 Dec, 1857" cds's, reverse with Ulm transit and Linz receiving postmarks; cover with small repaired erosion hole above 6kr, F.-V.F., a rare mixed issue franking; with 1997 Thoma certificate. Michel No. 2e+8a  Estimate $1,500 - 2,000. $0 (Image)