Postal Tax Due stamps. 1951, Red Cross, black overprint ''STT VUJA'' on 50p emerald and green, full OG, NH, F/VF, expertized by J. Bar with his certificate, Sassone #40, €520 (Image)

Postal Tax stamps. 1953, Red Cross, Blood Transfusion, blue overprint ''STT VIJNA'' on 2d orange brown and red, red color is printed twice, left sheet margin horizontal pair, full OG, NH, VF, Sassone #93a, €500++ (Image)