WHAT IS HOBNAIL GLASS?
” HOBNAIL GLASS has a regular pattern of raised knobs like the hobnail studs sometimes used on boot soles. It can be a pattern created by blowing a glass vessel into a mold, or it can be achieved by pressing the glass into a mold. It was very popular during Victorian times, usually in hand blown, translucent coloured glass, which is sometimes called “Dew Drop Glass”. Lemonade sets with a pitcher and matching glasses were very common at the turn of the century.
In 1939 Fenton Art Glass first introduced their hobnail glass and in those early years it was in translucent colours. Milk glass hobnail was introduced by Fenton in 1950, and proved to be one of their most successful products. It kept the company going during the very difficult years when many other glassworks closed down. Just about every Fenton shape has been produced in hobnail milk glass.
Pre-1958 Fenton milk glass is said to be easily distinguishable because it is less dense, less opaque, than their milk glass made from 1958 onwards. Also, the Fenton logo was introduced on milk glass from 1974 onwards, with a tiny number 8 below the word Fenton for pieces made during the 1980’s and a tiny 9 for pieces from the nineties.
Hobnail glass has been made by many USA companies, including Hobbs Brockunier & Co, Fenton Art Glass, Westmoreland Glass, Kemple Glass, as well as several British companies. Today it is also imported from China and Taiwan.” — from the glass encyclopedia