there it is Stack’s Bowers Galleries E–Newsletter Haven't got anything from them since I can't remember or at least when I used to bid on TeleTrade
I suspect business is slowing for them, particularly the <$1000 items. So they have a glut of lower-priced item and want to move them. Actually it works well for me. I'm finding things in my price range that I haven't been able to find elsewhere.