It is a "little" similar to Optima but the numbers are different, especially the "5".
The number "52".
http://www.axisandallies.org/files/images/aap1940-3330.preview.jpg
I have a science fiction novel that has the same style of numbers, and it was printed back in 1983.
New Millennium Sans is a bit similar except for the numbers and being too recent.