- Technical World 1913-02 1215 visits
- Technical World 1914-01 1073 visits
- Technical World 1912-12 1104 visits
- Technical World 1914-04 1374 visits
- Technical World 1913-12 1535 visits
- Technical World 1913-09 1426 visits
- Technical World 1913-07 1828 visits
- Technical World 1913-03 1360 visits
- Technical World 1912-08 1545 visits
- Technical World 1912-05 1851 visits