Identifying Fenton Glass pieces can sometimes be a little difficult as not all pieces are marked, however there are some tips that help to identify this American Companies work and sometimes even date it. Before the 1970's Fenton did not embed its logo into the bottom of pieces which can make it difficult to identify something as a true Fenton. During the 70's Fenton started embedding their logo into most of their products and followed suite in years after.
1970 – 1979: Produced in the 70's Decade
Fenton logo featured the word "Fenton" in script enclosed in an oval.
1970: "Carnival Glass" only which has also been referred to as "Iridescent Ware".
1972 -1973: Added to the "Hobnail" line and some other items
1975 – 1979: Featured on almost all of Fenton's items
If you are a collector of China then you most certainly have been in contact with Bone China. But what is Bone China actually? Simply put its a type of China created from a Porcelain that contains Bone Ash and other materials.
Bone China was created in the early 1790's by Josiah Spode who was an English Potter. He further developed a formula originally created by Thomas Frye. Josiah's formulation included 6 parts bone ash, 4 parts china stone and 3.5 parts china clay. The bone ash is created from cattle bones because they have a lower content of iron. This formula is still used as the base for all bone china. Josiah also had great success with his pottery company “Spode” that he founded in 1767 which is still a popular brand.