Pair of julep cups (beakers), mid-19th C.

One appears to be marked with a single letter on the bottom but I can't read it. Applied top and base rims with fine beading. Height 3-1/2". Mouth diameter 3". Base diameter 2-1/2". Weight of the pair is 6.65 troy ounces. The script monogram is EFGS on both pieces. Overall condition is excellent.