Stamp Giveaway # 11 (Arab ITU) [solved]

Kathiri set from before it joined South Yemen, regular and imperf (the imperf in changed colors). Also from a more conservative issuer, Sharjah along with a set for the dependency of Khor Fakkan.



What was the nickname given to the demarcation of the disputed border between Yemen and Aden Protectorate set up by the Ottoman Empire and the United Kingdom?

What 2 cancels are usually found on used stamps of the Kathiri state?

The first correct response before or by noon eastern US time, July 18, 2021 will be the winner. If no correct response is received, the first response will be the winner. All responses in English, please. My selectin of the winner will be final.

Good luck to those who choose to participate!

Will

Violet Line for the first one, still looking for an answer for the second

Later edit: Aden GPO and Aden Camp? Really not sure about this one

Quote: "allexis"​Violet Line for the first one, still looking for an answer for the second
​
​Later edit: Aden GPO and Aden Camp? Really not sure about this one

​Just found it from the web.

Used copies of Kathiri stamps generally bear Aden GPO or Aden Camp cancels.

- credits to - Mark Joseph Jochim https://www.philatelicpursuits.com/

https://philatelicpursuits.wordpress.com/2015/07/06/the-stamp-issuers-aden-protectorate-kathiri-state-of-seiyun/amp/

Congratulations, Allexis, for winning your second giveaway in a row!

The Kathiri stamps mostly have Aden cancels because the stamps of Aden, Qu'aiti, and Kathiri were all valid in each other's territories from 1942 to an undetermined date.

Stamps will soon be on their way to you.

Will

Thank you!