2 M., 25 Pfg. in the vertical pair and block of six 15 Pfg. postal stamp being a correctly franked on R return receipt special delivery cover with country postel service from STUBENDORF (circle GROSS-STREHLITZ) 4. 3. 21 with bilingual official stamp "proportional Committee Suchu Danietz" to Labitsch by Glatz, superb, extreme scarce postage step, in this combination from Upper Silesia are only a few pieces recorded!