Pair of Vintage Chinese Elephant Candlestick Holders.   Ceramic? Porcelain?

Has 'You Xian Ju Jianzhi' stamp on underside. 

Excellent pre-owned condition.  No chips, cracks, repairs, etc found.

Very heavy - each weighs just under 2 lbs. 

Approximately 7.5" long x 3.5" wide x 8" tall