Marked LCT Tiffany gold Favrile glass shot glass.
This lovely little gem is only 1 1/2" tall, but is a fine example of the wonderful and subtle coloring that Tiffany was able to achieve in their Favrile glass.
Marked on the base L.C.T. Favrile. You have to hold the base at just the right angle to read the signature, and it was difficult to photograph, but I think the photo shows most of it.