I'm leaning toward authenticity on this one. For starters, this DOES indeed sound like a genuine John Lennon song to me, the guitar, lyrics & melody are very John which isn't so easily duplicated by somebody else. The common "date stamp" for this recording is 1967-68 which would place it in a group of songs that The Beatles wrote and recorded before making that historic trip to Rishikesh in February 1968. This group of songs would also include:
Across The Universe (which it does somewhat resemble) this was later included on the 'Our World' (Various Artists) Compilation LP benefiting the 'World Wildlife Fund' before Phil ...