068W0142 https://collections.naturalsciences.be/ssh-geology-archives-plone6/boreholes/descriptions/ocr-descriptions/068w/068w0142 https://collections.naturalsciences.be/ssh-geology-archives-plone6/@@site-logo/logo-rbins.jpg 068W0142 L. ISEGHEM A.RUTOT N° 142 (I) Indications manuscrites sur la carte au 20.000° Sondage Yc