Early American Pattern Glass
This ruby-stained tumbler was manufactured by McKee and Bros. as their No. 139 pattern which was introduced c. 1897. It is popularly known as HEART BAND.
It measures approximately 3 3/4" high with a 3" rim diameter. The ruby stain has a couple of missing areas as seen in the photo. The red shown in the detailed part of the pattern is simply a reflection as that area is clear. There are no chips, cracks or repairs.
Quality control as we know it today did not exist in 100+ year-old glassware which usually exhibits some of the following: shear lines (straw marks), mold lines, bubbles, embedded ash or impurities, rough mold seams, & manufacturing variations. These irregularities are generally not considered flaws and often times help authenticate the date of production.
Reference: Page 77 of "Glass Tumblers: 1860s to 1920s" by Tom Bredehoft
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