D. Gregorii Placentinii - Commentarium Graecae Pronunciationis - 1751

This is an extremely rare book, with only one edition and small print run, an academic work on Greek pronunciation.
There are two books bound in one - "Commentarium Graecae Pronunciationis" (XX + 85 pages) followed by "Dissertatio de litterarum graecarum pronuntiatione" by Thomae Stanislai Velasti (111 pages)

Condition: The vellum is intact, but very much scribbled on, and the bottom part of the spine is loosely attached to the pages, although the top junction is still strong; the inside is in good condition, has some yellowing. All this is visible in the photos.