1800s Archive · Bridges & engineering

View of the Rockville bridge, largest stone bridge in the world, Harrisburg, Pa.

Harrisburg · 1905

View of the Rockville bridge, largest stone bridge in the world, Harrisburg, Pa., Harrisburg, 1905
View of the Rockville bridge, largest stone bridge in the world, Harrisburg, Pa., Harrisburg, 1905. Bridges & engineering — The 1800s Archive, from the Library of Congress record.

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