1. Glass-tipped pontil scar (image #1) - This type pontil scar was formed by the use of a solid iron bar as the pontil rod. One slightly widened end of the bar was tipped with molten glass then applied and fused to the base of the bottle. A pontil mark is a variable size and type of scar or roughage left on the base of a bottle by a pontil rod . A typical pontil rod (aka ponty, punty or punte) was a long (4-6 feet) rod which was securely attached to the base of the just blown hot bottle (Trowbridge 1870).
Pontil Scars
Glass Identification: Signatures + Marks | Antique & Collectable Glass Encyclopedia Glass Identification: Signatures + Markings Back to Glass Encyclopedia Home Shown below are signatures and marks found on glassware from various countries. See also: Glass Labels Jump to: Murano Scandinavian British Czech Maltese German Other Pontil marks - Blown glass, as opposed to molded glass, usually has a pontil mark on the bottom. This has a circular shape. Bubbles and irregularities - Many antique glass pieces have tiny bubbles or other imperfections in the glass. You may have to look very closely to see these. Patina - Older glass usually has a patina of time and use. Pontil marks - Especially common with older antique glassware, pontil marks are scarring on the bottom of the glass that comes from the edge of the pontil that's used to blow the piece. Mold marks - Mold marks are also common as well and are usually indicative of a manufactured piece of glassware which was cast using a mold. 4. Where was the bottle made and/or used? 5. Where can I go for more information on historic bottles? Blow -pipe pontil scar. Bottle ca. 1850-1855 This website will explain why this sharp glass mark on the base of a bottle is a key mid-19th century (and earlier) diagnostic characteristic.
Vintage BLENKO TANGERINE GLASS PITCHER PONTIL MARK PINCHED SPOUT BLENKO LABEL Blenko
Antique glass markings help solve the mystery of the old glass piece's past and provide clues for identification, value and authenticity. Learning the "Feel" of Antique Glass Old glass and new glass feel different. Begin by learning what new glass feels like. When holding a drinking glass or vase feel the weight, color, translucency etc. A pontil mark or punt mark is the scar where the pontil, punty or punt was broken from a work of blown glass. The presence of such a scar indicates that a glass bottle or bowl was blown freehand, while the absence of a punt mark suggests either that the mark has been obliterated or that the work was mold-blown. [1] Pontil mark: also known as a punt mark, this is a circular shape on the bottom or the base of the glass Pontil marks are from where the rod would have broken off during glassblowing. How to tell if glass is antique by its colour If you think your antique glass has an unusual colour, it could be rare and very valuable The bottle pictured to the left has an obvious bare iron pontil mark surrounded by a distinct glass tipped pontil scar (click on picture to enlarge for detail).. An illustration of the sabot can be found in the book Antique Glass Bottles - Their History and Evolution (1500-1850) by Willy Van de. Historic Glass Bottle Identification.
Empoli Glass Pontil Marks Pontil Scars Ishmael Yang
#1: Depression Glass Depression Glass came on the scene with a bang at a time when Americans needed a colorful pick-me-up! Depression Glass is colored glassware in a variety of patterns that were made during the Depression & post-Depression era (typically ranging from 1929 to 1940s.) Most antique glass bottles come with their unique bottom markings, which make it easy to identify them. Manufacturers during the past century have been using different combinations and symbols to differentiate one batch from another. These markings also help you to know if the bottle was made by one company or another.
The most significant mark is the pontil mark which is the glass scar normally found on the base. The pontil mark was created when the glass was broken free of the blowpipe. In addition vertical lines running down the bowl and striations in or around the bowl are among the other identifying features. 1. Look for Bubbles and Irregularities Antique pieces are known to have a couple of imperfections that can be seen on close inspection, such as irregularities in their carving, or tiny irregular bubbles in the bases. By closely examining the cutting points in every pattern of the glassware, you can also tell if the glass is cut or pressed.
C. 1895 Antique Bristol Blue Mary Gregory Angel Decoration Glass Jug Pontil Mark.
The iron or graphite pontil is the easiest to distinguish because it looks like an imprint of a black or rusty doughnut, these were in use 1850's-1860's. There are other pontil marks but these are the ones most will see. Machine made bottles-those with the mold lines all the way to the top made after 1905 do not use or have pontil marks. There are six basic types of pontil: Regular, Ground, Melted, Pinpoint, Fold, Pinch, and Crease. The first three are handmade marbles, the last three are machine-made marbles. Regular Pontil Transitionals have a pontil on one end that looks just like the pontil on a handmade marble. This type is fairly rare.
