Quart size square wide mouth mason canning jar by Cupples Company, St. Louis, Missouri.
Supposedly manufactured between 1910 and 1938, though it has not been confirmed.
Tis jar is embossed on one side, "Good Housekeepers Wide Mouth Mason". Embossed on the bottom, "Cupples Co. St. Louis".
Also on the bottom are numbers around a center seal or logo of an overlaying oval and trapezoid: 86-D at the 12 o'clock position. 0 at the 3 o'clock position. 4A at the 6 o'clock position. 20 at the 9 o'clock position.