The mold seam ends abruptly at the lower edge of the finish shown in picture. Victorian glass with nearly always contain air bubbles and ash from the firing. In good condition with no damage, light wear from use, See the photos. A nice Stevens and Williams vase, design from We strive to revolve the experience around you, sharing passion and knowledge, feel assured that your needs are our priority. All Auction Buy it now. A "NO" answer is much less likely than "YES" for this question as a very large majority of bottles made during the 19th century and virtually all made during the first half of the 20th century were mold blown resulting in mold seams; see the note below.
This is a "machine-made" bottle or jar and will also usually have a highly diagnostic horizontal mold seam just below the finish that circles the neck.
A wonderful piece of art glass by one of the best Victorian glass factories. An excellent example of a uranium green opaline glass bowl. Click canning jar to view the typology page section devoted to that category. On March 3,Congress passed H. Evidence of the mold seam within the confines of the finish positively identifies the finish glass as having been mold blown and not separately applied. Bottles with these diagnostic features were produced in a cup-bottom mold. In the experience of the website author, these machine-made bottles are rarely encountered and likely a function of early machine-made wares to s that had less precise mold fitting and resulted in the need for fire polishing to enable proper closure.