Up for your consideration, is an imperial carnival glass nappy, it is in good condition, meaning no chips or cracks, as far as the irridesence you will have to judge that for your self as I am not an expert to me it looks good.  It has the famous pansy decoration.  It is very pretty that's all I know.   The measurements are as follows:  It is 6 1/2 inches wide including the handle, and 2 1/8 inches tall.  It is carnival over clear glass.  It has the old imperial mark on the bottom.  I do not ship outside the U.S.A. I Thank You for your consideration.