One of just four UNESCO World Heritage Sites in the city, the Tower of London is one of the cityâs most popular attractions. Used variously throughout its history as a royal palace, an armoury, a prison, an execution chamber, a zoo, a barracks and a jewel house, this working royal castle offers a stunning insight into 1,000 years of history.
Early American Pattern Glass, also known simply as pattern glass, pressed glass, or Victorian glass, is pressed glass tableware (& some related novelty glass items) made during the Victorian period ca 1850-1910, only in America, in goblets and in sets such that all of the pieces in the set match in design.
Monolithic glass is produced using either the annealed, heat-treated or tempered glass float method. 2. Laminated Glass  Laminated glass is constructed by combining two panes of glass fused together with a middle layer of Polyvinyl Butylenes Film (PVB). PVB acts like a bonding agent to hold broken glass together.n etching label is normally on the corner of most tempered glass. This is to ensure that the glass is fully tempered. Types of Glass Construction Basically, there are 3 types of glass construction: 1. Monolithic Glass  Monolithic glass is the most basic of glass forms.