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Experimental blast furnace plant during Tennessee Valley Authority operation - 398b6e0e62ce05f91e92b07a44bdb020 (page 1)

Breaker at Hollywood Colliery. 19th century stereoscopic views of Pennsylvania.

Москва. Фабрика Брокар и Кo. Вид главного здания фабрики 1914-1915гг 773390

Gun shop in Armstrong works - Glass negative photogrpah. Public domain.

Steel and concrete go into place rapidly as a new steel mill takes form, Columbia Steel Co., Geneva, Utah. The new plant will make important additions to the vast amount of steel needed for the war effort

Ralph's Mine at Huntly, ca 1910s (21677612211)

An assembled gun, Washington Navy Yard

description

Summary

Photo shows an 8" 30cal gun used on the Atlanta and Chicago class cruisers. (Source: C. Seavy, 2018 and http://www.navweaps.com/Weapons/WNUS_8-30_mk1.php)
Second title on negative: Gun foundry at Washington, D.C.
"Detroit Photographic Co." on negative.
Detroit Publishing Co. no. 021322.
Gift; State Historical Society of Colorado; 1949.

Barrel Artillery

A very large dataset of various big guns, howitzers, mortars, columbiads, all types of canon-like things - everything besides machine guns and rockets. This collection as well as all massive collections on Picryl.com required two steps: First, we picked a set to train AI vision to recognize cannon artillery, and after that, ran all 25M+ images in our database through our image recognition network. All media in the collection is in the public domain. There is no limitation on the dataset usage - educational, scientific, or commercial.