Lot of 50+ optical items, including lenses, glass plates

There are nearly 50 lenses of various shapes, plus the colored and opaque glass plates. Several lenses are mounted.
The largest lens is about 5" dia., the smallest are about 3/8" dia.
Based on where this lot was located, these are at least 50 years old, and are probably much older than that.
Judging by the presence of some dirt, tape and a few chips, these are used lenses, but they look good overall.
A valuable find for optical experimenters, teachers, artists and anyone who likes light!
The photos were taken with and without flash to better show condition and variety.

Thanks for looking, and please don't hesitate to ask any questions.