From the naming pattern, this appears to be either:
is a vinyl record with a blank label, usually distributed to DJs or radio stations to test audience reactions before a full commercial release. Breakdown of the Reference : Likely the catalog number used by a specific distributor or label (possibly Intergroove or similar European electronic music distributors). : The title of the track or the series name. White Label
The IMOG series, short for International Music and Graphics, was a renowned record label that operated from the 1960s to the 1980s. Founded by Dutch music enthusiast and entrepreneur, Rob Schmitt, IMOG was known for releasing a wide range of music, from psychedelic rock to electronic and avant-garde sounds. The label's eclectic catalog featured both established and emerging artists, making it a treasure trove for music collectors.
Where did you the name? (e.g., a specific DJ set or a boutique shop?) Are there any other markings on the record sleeve?