Early 1900's Half Gallon Aqua Blue Canning Jar. Embossed "Atlas Mason Improved Pat'd".
8 7/8" height
4 1/2" width
Roughness to the outer rim and some small stress cracks around rim top. Has several air bubbles and straw marks. There is a wavy feel to a part of the jar and a grime spot in glass ( pic 6 ). Some wear to the base and about a 1" slit on the ribbing on zinc lid ( pic 7 / 9 )