War WWII Fall Singapore Registered Cover BUSAN Korea 1942 RRR

Description

War WWII Fall Singapore Registered Cover addressed to Japan with Special Postmark
dated 17th February 1942 Busan Korea RRR
Note 1)  3X(2+1 Sen Nogi stamp)+2X(4+2 Sen Togo stamp) overprinted with "Fall of Singapore" Sent from Busan (Korea) to Nara on 17th February 1942, the next day of stamp
first issued.
2) Rate: Correct, Letter up to 20g 4 Sen + Registration Fee 10 Sen=14 Sen. The same rate applied to letter from Korea to Japan as domestic rate.  Korea was under Japanese control
from 1905 to 1945.
3) A Letter dated 16th February 1942 included inside. (see scan)
The gist is as follows: (1) I suddenly found that Japan Post issuing commemorative stamps of Fall of Singapore late today. Visiting local post office
and found that stamps will be selling only from 17th February at local post office.  Only way to get FDC to go to Busan Central Post Office which
started selling on 16th February.   (2) (Thus letter was sent on 17th February, the next day of the day of first issue.) My brother studying in Busan
says the stamps are so popular that  4+2 stamp( Togo) were sold out at many post offices in Busan.
An very interesting historical document to show that there was a fever over Japan's victory even in Korea at that time. It will be an
iconic item for stamp exhibition over WWII history.
4) Shipping ：by registered airmail at extra cost of .50 recommended.