- Artist
- Mary Hopkin
- Title
- Knock, Knock Who's There / International
- Label
- Apple Records 1855
- Country
- Unknown
- Released
- Unknown
- Format
- 7", 45 RPM, Single
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.
- S45-X47899Label Side A
- S45-X47627Label Side B
- S45X 47899 Z2. 1 [STERLING LH]Runout side A, etched [stamped]
- S45X 47627 Z2. 1 [STERLING LH]Runout side B, etched [stamped]