Hi Marc, yes guess it doesn't matter really at this level of rarity
I think the blue/turquoise 45 i saw was one of the Savannah Int. 45s listed here by Sir Shambling, turns out from a cursory Popsike search its not a tough record:
Discography
My heart is yours / The boomerang thing ~ PJ 1002 (as LITTLE WILLIE)
Loneliness / Darling lets love ~ VENDELLA'S 101 (1969)
Lay it on me / That's how it is ~ DRIVE 6224 (1971)
Its got to be tonight / Between the lines ~ CAT 1979 (1972)
Left over love / I can't see myself ~ FUTURE STARS 1009 (1975)
Glory of love / I'm depending on you ~ JAM 0002
These arms of mine / Respect ~ MIGHTY 100000-1 / SAVANNAH INT 10000 (1981)
Its me / What I'm going to do (without your love) ~ SAVANNAH INT 1103 (1982)