artefacts: 178
This data as json
| rowid | artifactNumber | ObjectName | GeneralDescription | model | SerialNumber | Manufacturer | ManuCountry | ManuProvince | ManuCity | BeginDate | EndDate | date_qualifier | patent | NumberOfComponents | ArtifactFinish | ContextCanada | ContextFunction | ContextTechnical | group1 | category1 | subcategory1 | group2 | category2 | subcategory2 | group3 | category3 | subcategory3 | material | Length | Width | Height | Thickness | Weight | Diameter | image | thumbnail | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 178 | 1966.0159.001 | Tester hardness | METAL/ WOOD PART | ROCKWELL DIRECT READING HARDNESS TESTER | 306SA | WILSON-MAEULEN CO. | United States of America | New york | New york | 1930 | circa | 1 | PAINTED BLACK/ METALLIC PARTS | THE ROCKWELL SCALES "A" "B" AND "C" ARE U.S. DEVELOPED STANDARDS FOR MEASURING THE HARDNESS OF MATERIALS | Industrial Technology | Industrial equipment | Test equipment | metal;wood | 50 | 22 | 40.7 | http://source.techno-science.ca/artifacts-artefacts/images/1966.0159.001.aa.cs.png | http://source.techno-science.ca/artifacts-artefacts/images/1966.0159.001.aa.cs.thumb.png |
