The UK release of this record was also released in Holland with a Dutch catalogue number. The Dutch company putted a small sticker at the back that obsures the UK catalogue number. The sticker writes: MTM S-3011. That number is also used for the Dutch Martha & the Vandellas compilation from 1967 which includes exactly the same songs. Maybe the UK pressing with Dutch sticker is a kind of prerelease?
I see that this U.K. release substituted "I'm Ready For Love" for "Love (Makes Me Do Foolish Things" on side 2.
At the time when the U.S. version of this collection was released (May 1966) Martha and her girls had only had two medium-sized U.K. hits ... "Dancing In The Street" (#28 in late 1964) and "Nowhere To Run" (#26 in the spring of 1965), though people old enough to be around at the time tell me that both "Heatwave" and "In My Lonely Room" were also strong sellers..
"I'm Ready For Love" gave the ladies their third U.K. chart entry, debuting on 1st December 1966 and peaking at #29 during an 8 week run, so my guess is that U.K. Tamla-Motown held back on releasing this collection until they could put another recording on it that the British public would regard as a legitimate "hit".. Sharon Davis's book "Motown The History" has the release date of this as February 1967 which would all fit in with this theory.