500.A15a3/1343
The Japanese Minister for Foreign Affairs (Shidehara) to the American Ambassador in Japan (Castle)28
Excellency: I have the honor to acknowledge receipt of your Note dated May 21, 1930,29 relative to the interpretation of the term “category” [Page 127] appearing in Article 19 of the London Naval Treaty of 1930.
The Imperial Government understands the word “category” appearing in Article 19 of the above-mentioned treaty to mean “category” or “sub-category;” thus, it interprets this treaty in the sense that ships belonging to either sub-category (a) or sub-category (b) of the cruiser category (Article 16) which shall become over age may be replaced only within that sub-category.
I avail myself [etc.]
[seal]