ORIGINAL BELLFLOWER GOBLET
- 1840's - 1860's, Boston & Sandwich Glass Co.  Sandwich, Massachusetts

- 1860's, McKee & Brothers  Pittsburgh, Pennsylvania

REPRODUCTION BELLFLOWER TUMBLER
- 1950's, Fenton Art Glass Williamstown, West Virginia

- 1970's, Imperial Glass Co.  Bellair, Ohio Made for the Smithsonian Institute, Washington, DC

• All Original items produced are Flint Glass, and have a lead content.
  
• All Reproductions are without lead content.
  
• Reproduction Tumblers that are signed underneathe the base with "SI" were made for sale at the Smithsonian Institute.
  
• All examples found with "MMA" were made by Imperial Glass Co. for the Metropolitan Museum of Art, in New York City.
  
• Coloured examples were made in both periods, however, Originals have the lead content and are considered rare and valuable.

• Underneathe the reproduction Tumbler, Pitcher & Decanter there is an impression of a pontil mark, but it is pressed, rather then the blown rough pontil of early glass pressing.

• Originals are very crisp and clean looking, while reproductions are glossy, have dull lines (lacking details)  and are considerably lighter (not having lead content).