Here’s a good photo of a band that would be anonymous but luckily the photo was mounted to a backing board which names the band as the Phantoms, and the photographer as Newell Wood of Ulfinian Way in Martinez, CA. It also tells that the photo placed second in the Concord California Club miniprints competition in June of 1966.
Martinez is about 8 miles from Concord, and the band could be from anywhere around the East Bay, Vallejo or Walnut Creek. I’m not aware of any group named the Phantoms from that area, or if they made any recordings.