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The Old Shot Tower

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Stock #:563630
Type: Postcard
Era: Real Photo
City: Dubuque
State: Iowa (IA)
County: Dubuque
Postmark: 1948 Aug-11
Postmark City: Huntsville
Postmark State: Canada
Stamp: 3c
Size: 3.5" x 5.5" (9 x 14 cm)
Additional Details:
Built in 1856 to provide lead shot for the Civil War. Molten lead was poured through a grate at the top of the tower. The droplets that fell were of relatively uniform size, and the 120 foot drop provided enough time for the droplets to form into spheres, land in water at the bottom, and cool, retaining their spherical shape.

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