Start of the sale:
Thursday, March 2, 2017 at 6:49 PM
Wednesday, June 26, 2019 at 5:44 AM
One value MNH revenue stamp, 1 SDG , was issued by Central Equatoria State for use on birth certificates, Estimation of Age certificates, etc.
For more on Postage Stamps and Postal History of South Sudan, kindly see relevant article in Wikipedia.