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Color illustration of four children playing with tokens around a table, with a printed math problem: "Given these twelve tokens, arrange them along six straight lines so that there are four tokens on each line. (See the solution on the competition page of issue 1 of 'La Joie des Enfants')." Reverse: postcard mailed from Gagnac (Garonne) around 1904, with a 50-centime stamp, cancellation "AGEN 3-4-04" and a destination stamp "DAUSSÉ 17-12-04". Handwritten address to Mr. Athan Brange in Dausse.