Hand blown glass egg paper weight

Beautiful glass egg, been in family for over 30 years. Very unique concentrated glass colors and dichroic. Could POSSIBLY be a Robbins Ranch egg. Took pictures from every angle. There is a very fine scratch or defect in fifth picture very hard to see but want to make note it is there. Could be from the maker there are some odd swirls on top as well , looks like tool mark when made. Any questions please ask!