Roman openwork silver gilded phaleras / belt plaques from Xanten, 3rd century.
https://docplayer.org/192736602-Xantener-berichte-band-30.html
p. 122-129
Thomas Fischer
Ein römischer Balteusbeschlag des 3. Jahrhunderts n.Chr. aus dem Kies bei Xanten-Wardt
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(Dm. 9,7cm)