Stamp Giveaway, Series 2, # 39 [solved]

Miscellaneous sets and souvenir sheets (El Salvador, Iraq, Tanzania, Guinea)

During the Spanish Civil War that started in 1936 what was the date (month/day/year) that use of Republican stamps in Nationalist areas was forbidden after?

Winning answer will be first correct response at or before 7 AM, November 22, 2022, US eastern time. If no correct response is received, first answer of a month, day and year will win. My decision of winner will be final. Competition is open to everyone. Good luck to those who decide to participate!

Will

Perhaps just after the July coup by the decree of August 14, 1936?

Haven't found the proper reference for the stamps, but maybe it was the Unification Decree of April 19, 1937 when Franco was declared head of the Nationalists.  https://en.wikipedia.org/wiki/Unification_Decree_(Spain,_1937)

October 20, 1937🤔

Since no one supplied the date I found, Frenchlover is declared the winner as the first person to answer. Congratulations!

According to my source the use of Republican issues in Nationalist areas was forbidden after August 1, 1937 although captured Republican issues continued to be used if supplies captured and overprinted.

For those who entered, thank you and better luck next time if you choose to continue.

Will

Thank you very much for your games 😃