The World's Largest Public Domain Media Search Engine
PICRYL is the largest media source for public domain images, scans, and documents. PICRYL is an AI-driven search & similarity engine. PICRYL makes the world's public domain media fun to find and easy to use.
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![60-inch cyclotron target window with water cans by control room window. August 23, 1939. Cooksey 41 [Photographer: Donald Cooksey]](https://cache.getarchive.net/Prod/thumb/cdn10/L3Bob3RvLzE5MzkvMDgvMjMvNjAtaW5jaC1jeWNsb3Ryb24tdGFyZ2V0LXdpbmRvdy13aXRoLXdhdGVyLWNhbnMtYnktY29udHJvbC1yb29tLXdpbmRvdy1hdWd1c3QtNzA3OWRhLTY0MC5qcGc%3D/40/29/webp "60-inch cyclotron target window with water cans by control room window. August 23, 1939. Cooksey 41 [Photographer: Donald Cooksey]")
![Atwater Kent factory, [Philadelphia, Pennsylvania]](https://cache.getarchive.net/Prod/thumb/cdn4/L3Bob3RvLzE5MDkvMDEvMDEvYXR3YXRlci1rZW50LWZhY3RvcnktcGhpbGFkZWxwaGlhLXBhLTItNjQwLmpwZw%3D%3D/40/31/webp "Atwater Kent factory, [Philadelphia, Pennsylvania]")
