Don't think I've ever seen the double quad tape Filmore East on Ebay before. Seller never used any "Quad" variation in auction title and just simply lists them as "Classic Rock" After perusing 60 pages of "Reel Tape" listings, I noticed a flood of bootleg reel tapes from the "Ukraine Republic" and other former Soviet states. All recorded at 15ips, a dead giveaway that they are copies.
https://www.ebay.com/itm/Reel-To-Re...e=STRK:MEBIDX:IT&_trksid=p2060353.m1438.l2649
https://www.ebay.com/itm/Reel-To-Re...e=STRK:MEBIDX:IT&_trksid=p2060353.m1438.l2649