Beginning in the 1840s, milk glass was used as a less expensive alternative to other types of dinnerware. The Victorian milk glass, like this cup, was more opaque than the newer glass of the early to mid 1900's. This little cup carries remnants of the the burnished gold paint around the rim that is typical of the period . A rose decal was applied for decoration which has held up better than most that I have seen. The upper and lower rims are as typical-- a bit rough, but no apparent actual chips or breaks. The bottom has several little lines under the surface, around the edge, which is also typical of this glass. The cup measures only 3" tall by 2.5" wide and may actually be a child's mug. A wonderful addition to a Victorian milk glass collection.
Now also at brick and mortar store: Leonardtown Maryland Antique Center
If in Maryland; visit me at Leonardtown Maryland Antique Center. Happy Holidays!