Start of the sale:
Saturday, May 4, 2019 at 5:41 PM
Tuesday, June 25, 2019 at 9:00 AM
SOUTH SUDAN MNH, overprint error of the 2017 surcharge series, inverted 50 SSP new face value on 1 SSP National Flag of 1st series of 2011
For more information on Postage Stamps and Postal History of South Sudan, kindly see relevant entry in Wikipedia.
Visit also the "South Sudan Stamp Collectors" page on Facebook.
Combine purchases to save postage. See my other offers of stamps and picture post cards of South Sudan, Uganda and Bhutan.