This charming postcard shows children dressed in native costumes from around the world. The title is "The Twentieth Century Sunday School Crusaders". The caption on back: "THIS CARD IS FOR WORLD-WIDE USE AS AN EMBLEM OF THE SPIRIT OF WORLD-CONQUEST FOR CHRIST; AS A SOUVENIR OF THE WORLD'S SIXTH SS CONVENTION TO WASHINGTON USA MAY 19-24, 1910...".
I found the "Official Report" of the convention online here: World-Wide Sunday School Convention
Here is a screen shot of pages 32 and 33 of the book:
You can find this great postcard in my bidStart store here: SUNDAY SCHOOL CRUSADERS WORLD'S CHILDREN POSTCARD 1910
And in my eBay Store here: SUNDAY SCHOOL CRUSADERS WORLD'S CHILDREN POSTCARD 1910