IRS seized the remained stock of Ray Dobard's Music City Records shop, about 250.000+ records, in the early 2000's. IRS put the lot up for auction, John Manship and two other dealers won it. Ray shut down the shop in the early 70s and left everything untouched ever since.
The stock was unbelievable. Ray did not just run a record shop but he was a wholesale distributor as well. Many record companies sent him promos, boxes of undistributed records, etc. etc. (e.g. still sealed promo mailers from Shrine, or 25 count boxes of Jackie Day on Phelectron).
I wouldn't be surprised if somebody says that of every 1960s west coast/california Northern Soul 45 at least one copy was in this find.
I'm convinced JM is still auctioning stuff from that 'find' and will be for many years to come.