HEAVY CONCAVE PANEL AND PILLAR PRESSED OPEN SALTS, LOT OF SIX, deep cobalt blue, deep emerald green, light amethyst, clambroth, translucent lavender, and colorless, each with conforming rim, colorless example with impressed oblong loop to base, others with standard all-over waffle pattern to base. United States. 1840-1860. 1 1/4" H, 2 5/8" x 3 1/4".
Literature: Paralles Spillman, American and European Pressed Glass in The Corning Museum of Glass, p. 242, fig. 943.

Colorless example near proof, remainder with light to moderate flaking/chipping, green example with crack off rim at one end, blue example two moderate chips to base.