Four Art Glass Paperweights

Comprising an art glass paperweight with center bubble (possibly Millville), unmarked, 3 1/8 in. H., 3 1/4 in. Diam.; a multicolored art glass paperweight with bubbles (possibly Millville), unmarked, 2 in. H., 3 in Diam.; a clear art glass paperweight with yellow butterfly (possibly Old Jersey Glass Company), unmarked, 2 3/4 in. H., 3 1/4 in. Diam.; and clear blue art glass paperweight with bubbles (possibly Old Jersey Glass Company), unmarked, 2 1/4 in. H., 3 3/8 in. Diam.
Condition: Chip on top of butterfly glass; scratches to top of smaller possible Millville glass and minor chip on side; larger Millville has missing broken foot