Preparations made from the chemist John Landin. (1861-1920). From radium-containing barium sulfate from 1kg. Ölands slate. Exposition time 30 days.

• Contributor: BTEU/TEKNISKA / Alamy Stock Photo
• Image ID: 2F79YRN
• File size: 14.3 MB (432 KB Compressed download)
• Releases: Model - no | Property - no
• Dimensions: 1899 x 2632 px | 16.1 x 22.3 cm | 6.3 x 8.8 inches | 300dpi

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