Plate Assay Act, 1783

No pattern or design discovered or permitted to be seen.

XXV. And be it further enacted by the authority aforesaid, That no assayer in either of the assay-offices, shall discover, by description in words or otherwise, to any person or persons whomsoever, any pattern, design, or invention of any piece of gold plate, or other ware brought or to be brought to the said assay-office to be assayed, or permit the same to be viewed or seen by any person whomsoever, but the wardens and other persons necessarily employed, or to be employed in the said offices, under the penalty as is herein after mentioned.