Pontil marks on glass. Guidelines for Determining the Age of Antique Bottles

How to Date Antique Glass Bottles

Pontil marks on glass

Also, two other more recently published reference books on glass floats include: Glass Ballby Walter Pich 2004. Amongst this type are the earliest German marbles, the earliest American-made marbles, as well as marbles from Japan and China. Both rings are very symmetrical and did not leave a rough mark like the punty rod. One page on a website with info on some Norwegian glass floats……. Bottles lost their individuality as food manufacturers demanded more regular containers, bubbles and the charming irregularities that collectors love disappeared as the 20th century progressed. Check the transparency by holding the glass up to the light. The pontil rod was applied to the base of the bottle during the blowing of both free-blown bottles and bottles blown into a snap-case mold.

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EARLY AMERICAN BOTTLES’ PONTILS TELL WHERE AND WHEN THEY WERE MADE

Pontil marks on glass

Evaluating your Glass Object If you are not sure exactly what you have and want to learn more about it, make the effort to take clear photographs of your bottle or glassware. The seller also regularly offered reproduction art glass with imitation marks already applied. Peterson has a Bachelor of Arts from Eastern New Mexico University and a Master of Arts from the University of Nebraska, both in anthropology, as well as a Bachelor of Arts in history from Columbia College. These bottles were undoubtedly made by a dozen or more different glass makers in the Eastern U. Below are photographic examples of the primary pontil mark styles to be found on the different time periods of Black Glass production, including 1 Rough Disc Pontil Mark 2 Sand Disc Pontil Mark 3 Glass Rod or Open Glass Blowpipe 4 Iron Pontil Mark.

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EARLY AMERICAN BOTTLES’ PONTILS TELL WHERE AND WHEN THEY WERE MADE

Pontil marks on glass

The old shape number is even included as part of the new mark. This is where experience is irreplaceable, and you can only learn so much of it from quickly reading up on the subject. Satin glass often losses the mark during the sandblasting process used to make the finish satin. . A particularly good area to inspect the iridescence is the bottom of the piece. You might also consider browsing auction results on sites like ebay.

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Glass Fishing Net Floats

Pontil marks on glass

These marbles tend to be transparent blue, aqua, green or brown, with bright opaque white swirls in and on them. Also, compare the sticker found on the artwork to the one displayed online. They are very unusual on turn-mold bottles with the exception that they are frequently seen on turn-mold barber bottles from the late 19th and even early 20th century like pictured above and occasional shop furniture bottles made during the last half of the 19th century. A complete list of original 1903-1932 Steuben shapes is in The Glass of Frederick Carder by Paul Gardner © 1971 out of print. There are no identification marks anywhere on it but I know my parents had for a very long time before I got it. Authentic engraved marks may or may not include a catalog number. This leaves a scratchy dome mark on the base, which is hard for a new collector to discern from a smooth non pontiled dome on the base, which is part of the bottle mold itself.

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Guidelines for Determining the Age of Antique Bottles

Pontil marks on glass

I have not been able to find anything on the net about the bottle or Hydrol till I found you. A pitcher usually is blown, then transferred to a punty rod, or Pontile, so that the top opening can be formed, lip pulled down, and the handle applied. We at MuranoGlassItaly are passionate about Murano glass and want to help the Muranese families to preserve their traditions. Certainly there were differences between individual glass companies in both of these large glass making regions, but the noted trend was supported by their exhaustive research of hundreds of bottles and the companies that used them. This site uses Akismet to reduce spam. Grinding pontils is also a service most antique glass repair services can perform.

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EARLY AMERICAN BOTTLES’ PONTILS TELL WHERE AND WHEN THEY WERE MADE

Pontil marks on glass

One thing I can say is that 5 feet in the ground really is inconclusive with regard to age Hope this helps. The use of a blowpipe doubling as a pontil rod dates back at least to the mid-18th century in Europe McKearin 1970. Aside from being half buried, it is in v good shape. AppNexus This is an ad network. A glass tipped pontil rod made contact with most or all of the bottle base within the confines of the diameter of the pontil rod tip.

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Glass Identification: Signatures + Marks

Pontil marks on glass

As a result, the cut-off spot did not completely melt into the marble because the marble cooled too quickly as it was forming. Sometime around 1855 a tool called a snap case was invented which allowed the glassblower to hold the bottle for finishing without using a punty rod. The names and words used in marks varied. Aurene Prior to 1932, Steuben used several marks that varied depending on the type of glass. So, here's a copy of one I produced. Using a blowpipe for empontilling was likely done to both save on the number of tools used by the glass blower and to save time.

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