cover 1938 (12 Jan.) envelope registered to USA bearing 1924-37 2c. green, 25c. and 50c., all tied by Type D8 c.d.s., showing Air Mail etiquette with, on reverse, Singapore (17.1) and New York (4.2) transit d.s.; the cover with small adhesive tape stain in three corners

Details
cover 1938 (12 Jan.) envelope registered to USA bearing 1924-37 2c. green, 25c. and 50c., all tied by Type D8 c.d.s., showing Air Mail etiquette with, on reverse, Singapore (17.1) and New York (4.2) transit d.s.; the cover with small adhesive tape stain in three corners