Matching Pair of 18th Century Heavy Brass Candlesticks

Each measures 11.75" tall and have a 5.00" base diameter and a 3.50" top diameter. The hole for the candle is 1.00" in diameter with the larger top indention is nearly 3.00" in diameter. One weighs 6 pounds, 4 ounces and the other weighs 5 pounds, 12 ounces.  Very heavy candlesticks with a nice patina and no significant issues. One has old thread on the threads to tighten it when screwed together which is common.