This looked Helpful as far as General History of Bohemian Glass
Industry. Thank You to Jamey and also Big Bead Little Bead link below. Copy and Paste:
https://www.bigbeadlittlebead.com/guides_and_information/history_of_czech_glass_beads.php
Bead lover, collector since Age 15, semi-retired had wholesale/retail bead, folk art, tribal art store Lost and Found Gallery for 25 yrs. in DT Greensboro, NC