These are very gorgeous in person. Not small, but a commanding size that'll look great on your table. They can hold a 1-1/2 inch diameter candle and stand 5-1/4 inches tall and 5 inch diameter base. Based on the half circle logo design, this could date to the 1920's.
The Wilcox Silver Plate Company was located in Meridian Connecticut. Their designs are in several prestigious museum collections around the world. They were in business from about 1867 to 1980.