Question No. 1
What was the postage rate for these letters sent to Korea?
From Chefoo to Chemulpo (Inch'on) Korea. ICP 2c canceled by Chefoo Dollar Dater of Mar. 9, 1898. Endorsed "per Changriong" (the postal steamer chartered by the Imperial Korean government).
From Tientsin to Chemulpo (Inch'on) Korea. Tientsin Customs CDS (with "Customs" removed) of March 30, 1898.
On the back ICP 2c vertical strip of 3 canceled by Tientsin Pa Kua. Transit Chefoo Dollar Dater of April 1, 1898.
Why these two covers dispatched to Korea showed domestic postage rate?