The Californians
You will notice that top of the bill were the Walker Brothers and that ending the first part of the show was a relatively unknown Jimi Hendrix. That's a strange lineup - The Walker Brothers, Cat Stevens, Jimi Hendrix and Engelbert Humperdinck.
Just below Cat Stevens you might be able to make out the Californians. There is a larger version of the poster here.
Were you at the Winter Gardens in Bournemouth on Saturday 29th April 1967 watching The Walker Brothers / The Jimi Hendrix Experience / Cat Stevens / Engelbert Humperdinck / The Californians / The Quotations?
No, of course you weren't. You are all far too young.
For a short time, in honor of strummer and vocalist extraordinaire Adolphus J Goatcabin, here was Golden Apples by The Californians but I'm afraid you're too late - you've missed it.
Out there among you somewhere there's a guy called Jeffrey Glenn who lists 10 Californians' tracks in his top picks of Irving Martin Productions. You can find them here if you scroll down the page to number 14. The question is - who has copies of the tracks?