I hate to do this to a nice indicator made in the US, but it's the year 2000+17 and still no one has digitized any of the classic industrial control typefaces used by American manufacturers in the early- and mid-20th century.
A few used Futura or a close knockoff, but that sticks out a little too much. And no, Sublime is not a valid answer either. I used Leroy pen sets. Sublime is neither authentic nor true to purpose, it's just a more subtle kitch font.