Oh say, can you see?

Oh say, can you see?
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Why am I seeing a watermark?
Title: Oh say, can you see?
Description:

Caption: "Oh say, can you see?--If you are subject to night blindness, ... this machine will tell the story. It is the biophotometer which Leon S. Dorfman and Bernard Friedman, science teachers at Fort Hamilton High School [located at 8301 Shore Road], constructed out of scrap material in the school laboratory. Marion Viladesan and Joseph Cutri, juniors, are giving the device a try-out;" large chart in background.

Date: 1943
Location: Brooklyn (New York, N.Y.)
More Details: Grease pencil cropping marks; retouched.
On verso: date stamped: Jan 31, 1943; "Eagle staff photo."
Title from caption on verso.
Collection: Schools
Subject: Fort Hamilton High School (New York, N.Y.)
Biophotometry
High school students
Institution: Brooklyn Public Library, Brooklyn Collection.
Medium: Gelatin silver prints.
Photographic prints.
Rights: Copyright restrictions apply to the use of this image. For more information or to obtain a photographic reproduction of this image, contact the Brooklyn Collection at Brooklyn Public Library
ID: SCHL 0907