Possibly 1800-1840, possibly 1920-1950
Overall: 3 3/4 x 3 1/4 in. ( 9.5 x 8.3 cm )
Blue-green blown non-lead glass mug; tapered body pattern-molded with vertical ribs and decorated with spiral trailed thread of glass on upper half; applied loop handle crimped at both ends; attached foot with pontil mark.
Due to ongoing research, information about this object is subject to change.