To complement that, Neil, here's Rons version of events, copied from Soulful Detroit:
Here's the story on Soul 35019 by Frank Wilson:
The prime pressing plant for Motown was American Record Pressing (ARP) located in Owosso.Michigan now this plant was destroyed by a fire in 1971 but later in the early 80's I contacted some of the former employee's to see if they still had saved any of the records pressed there.
Well I got lucky and found a few thousand records pressed at ARP starting from 1952 when the plant started right up to 1971, I visted and purchased records from about 25 former workers, one day I received a call from a former manager saying he had about 300 records to sell and this guy ended up having the best Motown items.
Included in those boxes were the Frank Wilson (Soul 35019) and a test pressing of VIP 25034 a "MISSING" number which was the Chris Clark version of the same Frank Wilson song which had Clark overdubbing her lead vocal over Wilson's track.
Now here is exactly what he told me when I asked him how he had all these mint records including the Frank Wilson on Soul, he said: "we would press 6 copies and send 3 to Motown for approval and keep the other 3 copies on file" then he said one day"the owner told him to get rid of all the older records on file because they were taking up a lot of space BUT instead of throwing away all 3 copies he saved ONE copy of each and took those home, and that's what I got.
The other known copy in the UK was originally stolen by a Motown employee and then sold to that collector by Simon Soussan.
So IF the former ARP manager that I got my copy from was correct and the other 2 copies the plant had were destroyed then besides the one copy stolen from Motown's files that would leave only 2 possible other copies to exist.
My copy of Soul 35019 was near mint when I sold my entire Motown collection to Martin Koppel in 1994 at that time I placed a value of $4000. on that record based on offers I had for it up to that time. Martin Koppel had told me he would sell most of the collection by piece meal but since he loved northern soul he would keep the Frank Wilson in his collection BUt as it turned out someone else made him an offer he couldn't refuse.
Sean