1st Cut: 1968
Both toploader versions (both SMO from 1968 and 1C 192 from 1970) use the same cut. The latter has the EMI EEC matrix added to the YEX one.
There is also a ~1973 sideloader which uses this cut as well (see variant 3). Here, the YEX parts are omitted.
Cat #: SMO 2051/2052, 1C 192-04 173/74
Matrix:
Side A: YEX 709-1
Side B: YEX 710-1
Side C: YEX 711-1
Side D: YEX 712-1
or
Side A: YEX 709-1 1C192-04173-A-1
Side B: YEX 710-1 1C192-04173-B-1
Side C: YEX 711-1 192-04174-A-1
Side D: YEX 712-1 192-04174-B-1
or (variant from ~1973)
Side A: 1C192-04173-A-1
Side B: 1C192-04173-B-1
Side C: 192-04174-A-1
Side D: 192-04174-B-
2nd Cut: 1973
or 
Cat #: 1C 192-04 173/74
For the first sideloader release, the C-Side has been recut. Sides A, B & D are still from the first cut. However, the matrixes on those sides are seamlessly replaced, the YEX parts gone.
There are versions with the matrix for Side A etched very close to the label, and also versions with a more legible Side A matrix on the deadwax.
Matrix:
Side A: 04173 A-1 (placed half on the label; no hyphen between 3 and A)
Side B: 1C192-04173-B-1
Side C: 04 174 A-1 (very close to label)
Side D: 192 04174-B-
or
Side A: 04173-A-1 (placed on the deadwax near last track; hyphen between 3 and A)
Side B: 1C192-04173-B-1
Side C: 04 174 A-1 (very close to label)
Side D: 192 04174-B-
3rd Cut: ca. 1976
Side C is the same as the 2nd cut. Replaced by 4th cut quite quickly.
Cat #: 1C 172-04 173/74
Matrix:
Side A: 04 173 A-1
Side B: 04 173 B-1
Side C: 04 174 A-1
Side D: 04 174 B-1
4th Cut: ca. 1976
Sides A, B & C are the same as 3rd cut, but Side D has been recut. Also released on white vinyl and as a discounted “circled” version (with ◯ on back and reused 192 price code).
Cat #: 1C 172-04 173/74, 1C 192-04 173/74
Matrix:
Side A: 04 173 A-1
Side B: 04 173 B-1
Side C: 04 174 A-1
Side D: 04 174 B-2
5th Cut: 1984 White Vinyl
[Grail]
DMM
Analog DMM version on white vinyl, with the official logo. Actually pressed at Teldec. Discogs lists this version erroneously as a 1985 release. As a matter of fact, it was released in late 1984.
Cat #: 1C 172-04 173/74
Matrix:
Side A: ⬭ 04173-A1 +//D
Side B: 04173-B1 +//D
Side C: ⬭ 04174-A1 +//D
Side D: ⬭ 04174-B1 +//D
6th Cut: 1985
[Grail]
Unmarked DMM
Black vinyl version, close to the 5th cut, but pressed at Electrola. There are versions from early 1985 (without barcode on the back) and from late 1985 (with barcode).
Cat. #: 1C 172-04 173/74, 1C 2LP 172 10 4173 3
Matrix:
Side A: 04173-A2
Side B: 04173-B3
Side C: 04174-A2
Side D: 04174-B2
7th Cut: ca. 1986
[Grail]
Unmarked DMM
Black vinyl version. As opposed to 6th cut, this one was released on black Double-EMI Parlophone labels. Side B has been recut using the new 7-digit title number.
Cat. #: 1C 172 10 4173/74 3, 1C 2LP 172 10 4173 3
Matrix:
Side A: 04173-A2
Side B: 1041731-B4
Side C: 04174-A2
Side D: 04174-B2
1967-1970