Ornament by Hermann Billing for a magazine article about his architecture
Hermann Billing
<i>Deutsche Kunst und Dekoration</i> (<a rel="nofollow" class="external free" href="https://archive.org/details/gri_33125008852077/page/422/mode/2up?view=theater">https://archive.org/details/gri_33125008852077/page/422/mode/2up?view=theater</a>)