In Black & Busty no. 1 published by Golden State News.
According to the best information I can find, this magazine likely could not have been published any earlier than about 1968.
Part of the magazine’s interior text says:
All photographs used for any purpose in this magazine are posed by professional models, and neither the photographs nor the words accompanying them describe, nor are meant to be understood as the actual personality or conduct of the model.
One of the challenges to sharing vintage adult magazines is that there’s often not much information available about the specific magazines. Unless it’s one of the big 2-3 magazines, finding a model’s other professional names may not even be possible. Like the excerpted text implies, a lot of the text included in these magazines is pure fiction intended to entertain rather than inform.
Great rack!