Individual items and sets

Quality: ✉

1937 Letter by air franked "12.50fr." with n° 177 (2x), 187 (2x), 189 and PA 11, sent registered and acknowledgement of receipt from Nizi on 13-8-37 to Stavelot, correct rate for a letter between 5gr. and 10gr., acknowledgements of receipt are very rare in the postal history of the Belgian Congo, vf.