Plate Assay Act, 1783

If pieces of different standards, joined in a more close way, marked with lowest stamp.

VIII. Provided also, and be it further enacted, That if any manufacture of gold be composed of different pieces, such pieces being of different standards as aforesaid, (and being capable of receiving the marks aforesaid) shall be marked with the mark denoting as aforesaid the lowest standard of the gold contained in such manufacture: provided always, that the said pieces be joined together in some more intimate and close way than by means of links, screws, pins, pivots, joints or hinges as aforesaid.