OZ magazine colourful ads found.

TEB Italian fans pages run by my friend Mirco Delfino (go to https://www.facebook.com/pages/Third-Ear-Band/156660855584?v=info), with interesting links with music as/inspired by the TEB, posted these very interesting old colourful Blackhill Enterprises-Harvest Records ads published by the legendary freak underground OZ magazine in 1969 and 1970.

                                                       July 22, 1969

                                    September 23th, 1969

                                         February 26th, 1970

Note the usual Blackhill's style based on imaginative communication full of philosophical and psychological statements and a flower-power call: "To love Blackhill Enterprises is to love Life"... 

no©2016 Luca Ferrari (unless you intend to make a profit. In which case, ask first)