The attached PNG is from a sanned page out of a Teletype (r) service manual that was originally printed in the 1930-1940s It is one of the pages that is a list of parts. The font is different then that used in the main body of the manual. My guess printed from punch cards, and if so could be IBM.
Unique attributes are for example the number 8 has a flat line at around 10 degrees from the top. The base of the numbers varies
The 1, 2, 6, 8, 0 are at the character base
The 3, 4, 5, 7, 9 descend below
Again the 8 is very unique

The serif on the lower case y really stands out, and well as the lower case g
I don't think they match any of the fonts used by Teletype for their printers.

-pete