Is this album considered rare given the "Unknown Artist" listing?

While the artist is listed as Unknown Artist, the title references Elton John's Greatest Hits from 1974, suggesting a popular compilation.

What genre does this 1974 release fall under?

This release is categorized under both Rock and Pop genres.

The compilation was released in the year 1974.

Name: Unknown Artist - Elton John's Greatest Hits
Brand: Unknown Artist

Rock

Rock · 1974

Year · 1974Genre · Rock, Pop

Used

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New / Sealed

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Is this album considered rare given the "Unknown Artist" listing?: While the artist is listed as Unknown Artist, the title references Elton John's Greatest Hits from 1974, suggesting a popular compilation.
What genre does this 1974 release fall under?: This release is categorized under both Rock and Pop genres.
When was this specific "Greatest Hits" compilation released?: The compilation was released in the year 1974.