The two images show the front and back of a postcard mailed with the 1936-37 Christmas seal tied by a San Francisco cancel and also shows a PAQUEBOT cancel with San. Fran. Calif. The front of the card shows the N.Y.K. Line S.S. Taiyo Maru. This is the first usage of a Christmas seal that I have seen used during the proper time period and tied to the cover. The PAQUEBOT marking gives it an additional flavor.
The first KSS website
Please note: this card was shown on the first (pre-2000) website of the KSS, which was maintained by Thomas J. Richards. These first pages were saved by Harold Penn, who then created the second KSS website. It is now shown again on this generation, the third, of the KSS website.