Postby buckler » Sat Jun 07, 2014 10:48 am
Re overstriking.
I believe that an overstrike is entirely legal if done BEFORE assay , as basically the overstriker would then be the responsible sponsor of the item for assay . If done after ASSAY then I think an overstrike would be an offence , as if any query arose then the original sponsor might not be identifiable.
I doubt if the guys in the 18th century worried very much about it though !