068W0139 https://collections.naturalsciences.be/ssh-geology-archives-plone6/boreholes/descriptions/ocr-descriptions/068w/068w0139 https://collections.naturalsciences.be/ssh-geology-archives-plone6/@@site-logo/logo-rbins.jpg 068W0139 L. ISEGHEM A.RUTOT N° 139 (I) Indications manuscrites sur la carte au 20.000° Sondage Q3