Ruby Stained tumbler in the Zipper Slash pattern.  Made by George Duncan and Sons & Co.   Pattern introduced Circa 1893. Souvenir of Cripple Creek 1903.  It was hard to take a pic of the zippers (last photo shows the base and zippers), but this tumbler and stain are in excellent condition.  Ht. 3 1/2".

We received this information from a collector. We always like to add information on a piece of Victorian glassware so we thank him for his note.

"Just a bit of information, you may already know,  but it is from a small, turn of the century, mining town in Cripple Creek, Colorado.    It is now a Colorado Gambling town at the foot, of the Rocky Mountains south west of Denver, CO."