Camera Make: Panasonic Model: DMC-FZ72
Exposure Program: Landscape, Focal length: 3.58 mm, ISO: 200, Exposure time: 1/640 sec, Metering Mode: Multi-Segment, Exposure Bias: 0 EV
Date/Time Creation: September 12, 2015, 11:49 am
Exposure Mode: 2,
ImageID:1198303, Image size: 1024 x 660 pixels
Restricted free use Wallpaper Background Image
These are indeed the calciners where the arsenic was was was refined by being baked before the workers would go in and literally scape the powdered arsenic from the ceilings and walls. They would scrape the arsenic with no mask on or at best a handkerchief covering their mouth and nose. H&S would be in a fit if they were around in those days.