File:History of Inventions USNM 35 Tools for Metal Working.jpg
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English: No. 1. Stone hammer from Gaboon, Africa 154,088
No. 2. Japanese hammer. Head a plain cylinder of iron; helve of oak, fitting into a rectangular eye in the head 19,4G0 No. 3. Ordinary smith's hammer. The face is octagonal and the peen is wedge- shaped ; handle hickory; eye oval 166,679 No. 4. Modern blacksmith's hammer. Face circular ; poll flat and distinctly out- lined ; peen wedge-shaped, constricted at the top ; handle hickory ; eye oval. No. 5. Japanese jeweler's hammer, with poll and face of uniform size. Rectangu- lar peen, long, pyramidal, and pointed ; handle of oak set in a square eye 19,461 No. 6. Japanese jeweler's anvil. Thick spike of iron, with the upper portion squared and polished for hammering 19,461 No. 7. Model of a pump drill, all of iron. Used in country blacksmith shops for boring carriage tires 126,744 No. 9. Tibetan bellows without valves. The air is let into the goatskin by opening the end and forced out by closing it. (No cut.) 175,321 No. 11. Common bellows used in houses 70 years ago. No. 12. Dividers, with loop for setting 167,879 No. 13. Square-faced tongs or nippers 168,747 No. 14. Pincers for drawing nails 19,430 No. 15. Dividers for gauging. No. 16. Copies of ancient molds in which socketed axes were cast. Bronze Age 139,755 |
| Date | |
| Source | Walter Hough (1922). Synoptic series of objects in the United States National Museum illustrating the history of inventions. Proceedings of the United States National Museum 60 (2404). 1-47, 56 pl. |
| Author | United States National Museum (Smithsonian Institution), Washington D.C. |
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