This kaleidoscope has a blown glass body attached to a blown glass stand, the object is a 3 inch blown glass marble that sits on a blown glass stand with a plastic cup to hold the marble. All the glass, including the marble, area similar glass and dichroic combination. The bottom of the scope base is signed N David Rosenfeldt, the marble is signed NDR 2005, the bottom of the marble base is signed N David Rosenfeldt 2005. I decided to put down production as the type of edition as none of the 3 different blown glass scopes I own are numbered, just signed. The Purple Parlour scope appeared in the 2005 Strathmore Exhibit catalog.