Harry Borgman (American 1928 - ): acrylic, color
For E.C. Tubb's "TECHNOS"an ACE Double Paperback
Art 26 3/4” x 16”; board 27 1/2” x 18”
The white line in the center of the art in the images posted is light reflecting off a clear cover that is protecting the painting.
It is not a scratch or mark the the painting itself.