Heritage Long Beach Auction

I was wondering if anyone knows whos collection of NGC Early Gold mainly $2-1/2, $5 and $10 was consigned to this auction. On the subject of NGC gold it seems that there is a lot of early rare gold in NGC slabs compared to Copper, Nickel and Silver coins which most of the higher end items have been switched to PCGS.
Curious as to why that is. Any insight?
Willy
0