Mass-produced glass canning jars, also known as Mason jars after their inventor John L. Mason, Ball jars after one of the earliest manufacturers of the jars, and fruit jars because they were used to store fruit, have been manufactured since the early 1850s. An earlier British jar is known as the Kilner jar. Mason jars are made of soda-lime glass, and come in a variety of sizes including quart, pint, half-gallon, and cup sizes, as well as in wide-mouth and regular mouth shapes.
This Mason Jar is filled with black eyed susans.
The painting is a watercolor and is 12x9 on 140 lb watercolor paper.