File:History of Inventions USNM 16. Hammer.png
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English: No. 3. Hammerstones. Natural pebbles of quartzite, modified by use in shaping
stone implements. New Mexico and Ohio 98,343, 130,554 No. 2. Hammerstones. Nodules of flint worn round by use. The usual stone- shaping hammer in Europe and America. Switzerland- 100,561, 98.342 No. 3. Hammerstones. Natural forms battered around the periphery, with de- pressions in the sides. New York and Arizona 6,602, 133.590 No. 4. Grooved hammers, slightly grooved for attachment of withe handle. Lake Superior , 2,334 No. 5. Grooved hammers, deeply grooved for mounting. Arizona. No. 6. Stone hammer ; rude granite ; marks of use on face ; ivory handle at- taching by lashing of sinews. Eskimo 89,655 No. 7. Stone hammer ; bowlder modified by use ; slightly grooved ; withe handle covered with buckskin. Great Plains 1.52,312 No; 8. Ivory hammer with modern handle, notched or granted in and fastened with cord. No. 9. Hammers, one of staghorn, one of stone ; drilled for insertion of handles. Swiss Lake, Yverdon 100,634, 100,708 No. 10. Stone hammers, pecked and ground ; drilled for handles ; hammer face and ax or hatchet edge. Denmark and Prussia 58,552, 137,134 No. 11. Old-fashioned claw hammer of iron, square face. Finland 167,876 No. 12. Modern blacksmith's hammer ; cast steel ; round face and peen. No. 13. Modern claw hammer ; cast steel ; round face. No. 14. Modern machine hammer. |
| 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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