Matryoshka Russian Silver Gilded Nesting Dolls 7 Piece Signed Ceprueb Nocag

I know very little about the set except that it was given to my mother by a friend after she visited Russia in 1990s. There are 7 dolls in total, the largest measuring about 7.5" tall, and all dolls are in excellent condition. From my limited research, I believe the signature on this set to be Ceprueb Nocag, but please refer to the final photo to make your own conclusion. Please ask any questions you may have prior to bidding as all sales are final. Many thanks!