122W0216 https://collections.naturalsciences.be/ssh-geology-archives-plone6/boreholes/descriptions/ocr-descriptions/122w/122w0216 https://collections.naturalsciences.be/ssh-geology-archives-plone6/@@site-logo/logo-rbins.jpg 122W0216 PL. DALHEM 122W J.M.Graulich 216 (II) Puits de 21.00m de profondeur creusé dans le terrain houiller.