3 media by topic ∙ page 1 of 1
Brasier d'Herculanum - Wonders of the Ancient World
Public domain scan of a architecture diagram, settlement map, plan, or drawing, free to use, no copyright restrictions - Picryl description.
Plate 8046-A. Efficient heater construction.
Public domain scan of artwork related to technological or industrial history, free to use, no copyright restrictions image - Picryl description
Efficient heaters for heating water by steam.
Public domain scan of artwork related to technological or industrial history, free to use, no copyright restrictions image - Picryl description