Another contribution from Josephine Jasperse – this is an up and down (bilateral) version of the image in Graham Gower’s “Which Way is Up?” post below, and plate 18 in Frembgen and Mohm. With many additional elements…
Here the mystery “funnel-shaped object” appears more topographical, like a pictorial representation of a mountain range. Your interpretation, and its origins, please Josephine.
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