Hornwork

A hornwork is an element of the Italian bastion system of fortification.

Its face is flanked with a pair of half-bastions.

It is distinguished from a crownwork, because crownworks contain full bastions at their centers.

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Feature 'f' is a hornwork [ 1 ]
Hornwork
The Weber Church of Zittau inside a hornwork [ 2 ]
Drawing, showing a hornwork, of the fortress Nya Älvsborg in Gothenburg, Sweden from 1811.
Drawing, showing a hornwork, of the fortress Nya Älvsborg in Gothenburg, Sweden from 1811.