Ultra Rare Cartier Sterling Silver Champagne/Wine bottle holder set.

This is an Ultra rare 3 piece set of Cartier Sterling Silver Champagne/Wine bottle holders.  I have researched these for weeks trying to find more information on them with no luck.The two taller units measure 11 3/8" tall and the smaller measures 9 3/8" tall. I am guessing the smaller one is for a split of champagne. They are in their original box however it is in poor condition from water damage on one corner. The taller sets are 692 grams and 675 grams including the glass inserts in the base. The smaller set is 449 grams including the glass insert in the base.   I did find a single holder that was similar without the base. It had the handle legs curving under to hold the base of the bottle.That unit sold for $898 at auction!