In some cases milk was used to make a luster effect on the glass. They ultimately were being identified as Kakamba Prosser beads, named following the town inside the Republic of Congo where by they ended up traded. Prosser beads began to fall outside of favor during the early 1900’s https://damiennkhcx.ampblogs.com/the-definitive-guide-to-blue-blossom-bracelet-68176437