The following is a guest post by Helena Zinkham, Chief, Prints & Photographs Division.
What tends to be 3.5 inches tall and 10 inches long? Postcards created in a panoramic view format.

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The following is a guest post by Helena Zinkham, Chief, Prints & Photographs Division.
What tends to be 3.5 inches tall and 10 inches long? Postcards created in a panoramic view format.