Overall: 2 7/8 x 1 7/8 in. ( 7.3 x 4.8 cm )
Colorless lead glass tumbler with etched border below rim, initials "PP" (first initial is transposed) etched on side, and three-quarter-inch band of fluting cut around edge of base.
The initial "P" stands for "Plaza" [Hotel].
Due to ongoing research, information about this object is subject to change.