"Wave Crest" is the term for today, and it's a type of opaque white glass manufactured by the Pairpoint Manufacturing Company of New Bedford, Massachusetts. What I find interesting about Wave Crest are the pretty molded forms that were used to create the various items such as biscuit jars, humidors, vases, and collar and cuff boxes like the one below. The name of the mold used for the collar and cuff box is "egg crate." The top of the box does resemble an egg crate, doesn't it?
Here are some more Wave Crest glass items. The beautiful hand painted decoration wasn't applied at the Pairpoint factory. The glass blanks were shipped to the C.F. Monroe Company of Meriden, Connecticut. They added the lovely pastel florals and flourishes Wave Crest is known for.
Production of Wave Crest items began in 1898. The C.F. Monroe Company went out of business in 1916.
Wave Crest items aren't cheap, although I've noticed the prices realized at local auctions aren't as high as they used to be. A beautiful egg crate cuff and collar box like the one pictured in this post should sell for $300 to $400 on the retail market. At the lower end of the scale, a simple bud vase with a metal mount would run about $125 here in Michigan.