3 images for 1940 classroom chalk boards
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846-02797150
1920s CLASSROOM MALE TEACHER HELPING BOY AT DESK - BLACKBOARD IN BACKGROUND
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846-02797403
1930s LINE-UP OF 5 ELEMENTARY SCHOOL STUDENTS IN FRONT OF BLACKBOARD READING BOOKS WITH TEACHER LOOKING ON
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846-02797123
1930s 1940s MAN TEACHER PROFESSOR LOOKING AT CAMERA WITH POINTER AT BLACKBOARD
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