Sorry we probably did miss PM's as I deleted a bunch of mine since I was over the 50 limit
They are the blank Lisson Label 12" vinyl record with the blank white sleeves.
There are two sellers who have the Lisson Label 12" for sale on discogs. I got my Lisson version from this site a year or so ago and everything was great.
http://www.discogs.com/sell/item/1702505?ev=bp_titl http://www.discogs.com/sell/item/10760658?ev=bp_titl