Rain

I have no info for this specific disc. The date written on the label, 20 April 1966, would seem to indicate that it's the standard RM3 single mix from 16 April 1966.

Presently, I can not figure out what the notation "(A.T.O.C.)" indicates.
Any ideas?

RECORDING HISTORY:

14 April 1966
16 April 1966
E59736 4T
Rain (TK1-TK5) b

16 April 1966
E59737 A (remix)
Rain (RM1-RM4) (RM3) B

16 April 1966
E59738 4T
Rain (4T-4T) (TK7-TK8) (TK7) B

10 June 1966
TL25222 S
Rain (7XCE 18381)

10 June 1966
TL25222 S
Rain (7XCE 18381)

2 December 1969
E95182 Z (remix)
Rain (4T-Z) (RS1-RS2) (ED) B