Pressed glass with a bluish tint on the bottom. Seam visible on both sides of jar. Words"Whitney Patd 1858" create a circle around the word "Mason." Multiplw areas show where there are bubble in the glass.
Lid is charcoal gray and light gray underneath. 4 rings are visible on the underside with the letter H in the center of the smallest ring. "Boyd's genuine porcelain lined 6 cap" words around outermost ring.
