4 resultados para dihedral corner reflector

em CUNY Academic Works


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A group of twelve students are learning how to work on telephone poles at the New York Trade School. Black and white photograph with some minor damage to the image in the bottom left hand corner.

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A class full of students learning electric are shown in an electrical classroom at the New York Trade School. In the upper left-hand corner of the room a sign reminding the students to think about safety can be seen. It reads, "Beware of Live Wires: Students are warned not to make, or disconnect hookups, without first opening the switch that controls the flow of current. Observe Safety First at All Times." Black and white photograph.

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An electrical classroom at the New York Trade School is shown here absent of any students. Black and white photograph that is yellowing and is torn in the upper left-hand corner.

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A student is shown on stage shaking hands with an administrator at a New York Trade School commencement ceremony. A diploma can be seen in his left hand. Black and white photograph with some damage from folding in upper right hand corner.