Clear green glass; mold-blown; tooled lip, pontil mark. Obverse: Masonic decoration; from a mosaic pavement rise two columns surmounted by archway with Keystone in center; beneath Keystone radiant all-seeing eye and between columns radiant triangle enclosing the letter "G" and above it open book with square and compasses. At left of column, trowel with skull and crossbones beneath. At right of column is Jacob's Ladder ascending to "Cloudy Canopy" or "Star Decked Heaven", represented by radiant quarter moon surrounded by seven stars at right of archway. At left of archway blazing sun. Beneath pavement at right beehive and at left crossed level and plumb line. Thirty-four bricks in pavement. Reverse: American Eagle, head turned to left; shield with vertical and horizontal bars on breast; wings partly raised and left foreshortened. Thunderbolt (three arrows) in its left talons, olive branch in right. Above eagle ribbon with inscription "E PLURIBUS UNUM" (letters frequently indistinct). Beneath eagle oval frame with letters "HS". The initials stand for Henry Schoolcraft. Edges: five vertical ribs.