[Below: This image is meant to show the many races of the Co-Prosperity Sphere.]

[Below: Postcard featuring Emperor Puyi celebrating the first anniversary of Manchukuo.]

[Below: Postcard of Manchukuo Imperial Army troops.]

[Below: Postcard bearing the image of Emperor Puyi.]

[Below: Commemorative postcard celebrating the inauguration of the Japan-Manchukuo Airmail Service.]

[Below: Commemorative cancels on an unaddressed Manchukuo envelope.]

[Below: An envelope (sent in April of 1937) from Moukden, Manchukuo, today Moukden is a city in northeastern China.]

[Below: Close-up of stamp.]

[Below: Reverse of envelope.]

[Below: Letter within... I especially like the part '...one wonders why Japan would want it.' .]

[Below: Manchukuo postage stamp block of four.]

[Below: Manchukuo postage stamp showing Emperor Puyi. Circa 1935.]

[Below: Ink postage stamp cancel.]

[Below: 1936 Manchukuo stamp booklets (10 panes of 6x2f green) still in original wrapper!]

[Below: Here is an interesting catalog from 1938 which shows a variety of Manchukuo stamps. Front.]

[Below: Catalog reverse.]

[Below: Page within.]

[Below: Pages within.]