Japan, 1915 Caroline Islands picture postcard. Painted native scene card with "Y.T. Kuga Maru" ship endorsement, with "4.8.4." ship postmark with Near Yap in second line, red Japanese censor handstamp, Very Fine, a scarce usage. Estimate  $100 - 150. Post Offices were sent up on ships during WWI to handle mail in the Caroline Islands. $0 (Image)