Locus Origin: ChinaNomen notam: JCDRILLExemplar Number: ATWU BTWU NTWUType: Underground Core EXERCITATIOMateria: SteelUtere: subterraneis core EXERCITATIOLongitudo: 1.5mNomen: Caput EXERCITATIO Wireline Caput Barrel Caput Conventus Overshot