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Keywords from Image Description:
Netvault Brockhaus . Netzgewlbe Zeichnung aus dem Brockhaus von gemeinfrei Mit Gimp nachbearbeitet net vault drawing out of the BrockhausLexikon of PD Brockhaus von User MatthiasKabel on org de page is was here Okt MatthiasKabel Byte Netzgewlbe Zeichnung aus dem Brockhaus von gemeinfrei Net vaults Drawings of vaults