. Bulletin . ^ at any reasonable depth. The die is a case-hardened tool andcan not be driven upon without danger of breaking, although it maybe pulled upon with safety when properly screwed on. Such tools.

---

Size: 1441px × 1734px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bookcentury1900, bookdecade1910, booksubjectminesandmineralresou