I've see a lot of Faberge Crystal/Glass Eggs before and they are usually with flowers or something generic. This estate sale find is of a Cat etched on the egg with a nice stand. This is signed and numbered #0068. If that is the edition number, that is a very low number. It could be a style number, but I don't think so.
I have not been able to find another one like this. The item "RARE Imperial RUSSIAN Faberge Cat KITTY Kitten Cut Crystal Glass Egg SIGNED RU" is in sale since Friday, July 27, 2018. This item is in the category "Collectibles\Decorative Collectibles\Decorative Collectible Brands\Faberge". The seller is "galleryoff5th" and is located in Baltimore, Maryland. This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, China, Sweden, South Korea, Indonesia, Taiwan, South africa, Thailand, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Israel, Mexico, New Zealand, Philippines, Singapore, Switzerland, Norway, Saudi arabia, Ukraine, United arab emirates, Qatar, Kuwait, Bahrain, Croatia, Malaysia, Brazil, Chile, Colombia, Costa rica, Dominican republic, Panama, Trinidad and tobago, Guatemala, El salvador, Honduras, Jamaica, Antigua and barbuda, Aruba, Belize, Dominica, Grenada, Saint kitts and nevis, Saint lucia, Montserrat, Turks and caicos islands, Barbados, Bangladesh, Bermuda, Brunei darussalam, Bolivia, Ecuador, Egypt, French guiana, Guernsey, Gibraltar, Guadeloupe, Iceland, Jersey, Jordan, Cambodia, Cayman islands, Liechtenstein, Sri lanka, Luxembourg, Monaco, Macao, Martinique, Maldives, Nicaragua, Oman, Peru, Pakistan, Paraguay, Reunion.