First-year pressing

Pyramid 1978 US Pressing (AB 4180)

Runout and matrix codes

Etched or stamped in the dead wax between the last track and the label. If yours match, you have this pressing.

AB 4180 SAA Side Label
AB 4180 SBB Side Label
AB-4180-A-2 ʙʟ⍂ɪʀ 7 B1 T2Variant 1 - A Side Etch
AB-4180-B-2 ∆ 7 A3 T2Variant 1 - B Side Etch
T1 AB 4180 A BL∆IR (12)Variant 2 - A Side Etch (12 is in circle)
T2 AB-4180-B-2 ∆ 7Variant 2 - B Side Etch
T2 AB-4180-A-2 ʙʟ⍂ɪʀ 7 7AVariant 3 - A Side Etch (7A stamped)
T1 AB4180B ∆ 12 BVariant 3 - B Side Etch (12 inside circle)
T2 AB-4180-A-2 BL⍂IR 7 A IIVariant 4 - A Side Etch (final A stamped)
7S AB-4180-B-1B SXT TA ∆ⓈVariant 4 - B Side Etch
T1 AB 4180 A BL∆IR 12 C IIVariant 5 - A Side Etch, 12 in a circle, "C" stamped, var 5
AB-4180-1B A B ∆ⓈVariant 5 - B Side Etch, "A" scratched out, var 5
T1 AB 4180 A BL∆IR 12 3CVariant 6 - A Side Etch, 12 in a circle, "C" stamped, var 6
AB-4180-B-1B B5 ∆ⓈVariant 6 - B Side Etch, "A" scratched out, "S" in a circle, var 6