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Originally Posted by greatwallforum
This photo will help illustrate towers and ovens.
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Thx for showing, it makes it clear.
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The number of ovens used corresponding with the size of the attack sounds right. And I am not convinced that they would necessarily be on top of the Wall. They would be better protected behind it where they are located.
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This is not convincing. First, about all "beacon towers" should have had a signalling device. At least the remote ones. Most of them do not show this kind of "oven". Second, all signalling devices should have had been lifted up in order to be able to bee seen from far away. Third, a fire inside these ovens are not visible. Only smoke. But how to tell wich oven sent smoke from far away (kilometers away) if the ovens are within 20 meters?
No, those have not been signalling devices.
-chinoook