They didn't. From reading the description, it seems like the guy who bought this from SBSS (either during the Chris Duane/Mulligan Mint partnership or afterwards) has sent the medallion off to another mint to have it guided.
Unless he's just coloured it in with gold texta haha
Not good. I guess some people will see this different to me. Maybe I should do the same to my Gold Maple but turn the leaf into silver. That would be cool......NOT!!!!
The bloke doing it to your rounds is actually doing a great job.
The slave queen in the OP has just been coloured with a yellow pen, certainly not gilded in gold.