| http://www.w3.org/ns/prov#value | - FIG. 5 comprises a series of sectional views through metal members illustrating the progressive forming of the post and base plate of FIG. 3 in the series A through E, and the progressive forming of the post and base plate of FIG. 4 in the series A through D, followed by E and F. FIG. 6 is a sectional view taken through an arrangement of parts illustrating a modified form of the invention, in whic
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