Skiopticon image from the Department of Photography at the Royal Institute of Technology. Use by Professor Helmer Bäckström as lecture material. Bäckström was Sweden's first professor in photography at the Royal Institute of Technology in Stockholm 1948-1958.color photography. Autochrome grid.

• Contributor: BTEU/TEKNISKA / Alamy Stock Photo
• Image ID: 2F77DYC
• File size: 14.3 MB (608.8 KB Compressed download)
• Releases: Model - no | Property - no
• Dimensions: 2328 x 2146 px | 39.4 x 36.3 cm | 15.5 x 14.3 inches | 150dpi
• Date taken: 14 May 2013

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This image could have imperfections as it’s either historical or reportage.