Astronomy detective question: what part of the sky are these photos of? What are a few of the stars?
Astrometry.net successfully plate-solved both images.

The first image is of the Cygnus region with north to the left.
It is 73&deg; wide and 55&deg; high, with 65 arcseconds per pixel or 55 pixels per degree.
Bright stars include Deneb (&alpha; Cyg) left of center and Altair (&alpha; Aql) at upper right.

The second image is of the Sagittarius region with north up.
It is 37&deg; wide and 66&deg; high, with 80 arcseconds per pixel or 45 pixels per degree.
The bright object left of center is Saturn, which was at that position around 2019-07-29.