This is a covered cup on legs with Chinese dragon motif. The surface texture looks like it is pressed glass. The seams could have been smoothed. This could be Depression-era uranium ware, as the color is so vivid. You can tell by seeing if it glows green when you shine a UV or black light on it.
It is an unusual piece. Covered tea cups like these are more common in China, but the heavy pressed glass with this wax-like texture is American Depression-era. The footed cup is an unusual design element, more fitting with Chinese ceremonial vases than Chinese cups.
Based on sales of similar items, the Fair Market Value is between $30 and $40.