122W0139 https://collections.naturalsciences.be/ssh-geology-archives-plone6/boreholes/descriptions/ocr-descriptions/122w/122w0139 https://collections.naturalsciences.be/ssh-geology-archives-plone6/@@site-logo/logo-rbins.jpg 122W0139 PL. DALHEM 122W H.FORIR 139 (V-b) Septembre 1931 Idem
