You wrote: 

Is this a Marathi and newer version of Naik, B. S. (1971). Typography of Devanagari. Bombay: Directorate of Languages (noted by Birgit Kellner)..

Note:  "Typography of Devanagari ( can be downloaded (in 9 parts) from https://disk.yandex.com/d/rDIogm1J3WjKp4 . In addition to all the infomation it gives, it has photographic plates  and samples of devanagari from the earliest copper plate printing  (from Hortus Indicus Malabaricus ,Amsterdam, 1678 ,copied below)  up to and including samples from different fonderies from what it calls "the Nirnaya Sagar era".

Harry Spier