15thc perception on swallowtail merlons?

[DG97EEB]

Found another

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page 193:192

From Library: Florence - Biblioteca nazionale centrale di Firenze Shelfmark: II.II.62



And this one, not from Da Sfera, but from De Re Militari by Valturio but I think it is probably too late.

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Great.. so we have 3 and of course that is only the digitised ones..from my research something like 51 out of 166 have been scanned... I'm doing some work at the moment on the stars picture.. more soon..

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This one is late and may be irrelevant, but it's an interesting view nonetheless. The wall has goopy white stuff below the merlons, as if it has recently been repaired. From Carlo Crivelli's masterful Annunciation altarpiece, painted in 1486: You are not allowed to view links. Register or Login to view.



It was painted for the town of Ascoli Piceno, which seems to have had a troubled history, changing owners in the 15th century. 
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Yes, the bricks are different and the white suggests that it has been repaired indeed..