This is "Christali" by Sue Rioux. What a wonderful handheld kaleidoscope! This scope has a beautiful textured glass body, clear glass rods on top and a rotating dichroic glass drum. This scope has a 3-mirror system and it is signed and dated (2016) by the artist. Measurments for this scope are 9"L x 1-1/2"W x 3"T.