Stone fabrication Photo 1: Stone manufacture; handfiring of a flame oven (6x8,5 cm; unknown) Photo 2: Stone fabrication; measurement with optical pyrometer (6x9 cm; unknown) Photo 3: Stone fabrication; drawing up of optical pyrometer (6x9 cm; unknown) Date: undated Keywords: workers, brick industry, measuring instruments, ovens, pyrometers

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Size: 2228px × 3141px
Photo credit: © BNA Photographic / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: