The Egyptians used a variety of special objects to perform the rituals for the gods. The image of a special collar, called an "usekh," surmounted by the head of a god or goddess was such an object (also called an "aegis," originally a Greek term for "shield"). It was used to invoke the gods to guarantee protection, and was also used as an ornament on the bow and stern of a sacred ship. 
This bronze "usekh" is combined with the head of a goddess, which is crowned by a "calathos" with "uraei" (cobra serpents), cow horns, and a sun-disk. This crown was originally related to Hathor, but later was also used for Isis. The collar itself displays floral ornaments and has two falcon-head terminals. This heavy bronze "usekh" was probably attached to the bow of a wooden sacred boat.
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<span lang="en">Anonymous</span> (<a href="https://en.wikipedia.org/wiki/en:Egypt" class="extiw" title="w:en:Egypt"><span title="sovereign state in North Africa and Asia">Egypt</span></a>)<span style="display:none">Unknown author</span></div>
between circa 380 and circa 340 <a href="https://en.wikipedia.org/wiki/en:Ante_Christum_Natum" class="extiw" title="w:en:Ante Christum Natum">BC</a> (Late Period)
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