Bottle Dating. Click here to move directly to the list of mouth-blown dating questions. The mold boy aka a servitor would open and close the mold at the base of the pipe behind the wash tub as directed by the gaffer. In front of the gaffer in this image to his right is the chair where much work was done with blowpipe manipulation prior to lowering the parison into the mold expansion. A second boy looks on with possible admiration of the gaffer as they were the highest paid and most elite workers on the glass factory floor and among the highest paid of all skilled laborers during the 19th century Barnett Being a gaffer was also the position that glass factory boys aspired towards Skrabec Directly in front of the standing boy is most likely the marver which was a flat table used for parison manipulation.
Glass bottle push-ups and pontil marks
Sometime late in the third quarter of the 19th century, glassblowers developed new methods to speed up and increase production. Semi-automated methods, and later fully automated methods left labor intensive hand production behind. One sign of a handblown glass object, whether a bottle, a pitcher, vase or bowl, is a distinctive sometimes sharp mark on the base of the object.
To browse Academia. Skip to main content. Log In Sign Up. Download Free PDF. Graciela Montero. Massimiliano Pontil. These markings appeared to have been left on the glass by glassmakers during the formation of the base and while holding the bot- tle on the pontil. In the process of identifying the marks, some relationships between the marks and certain types of bottles and their country and date of manufacture became apparent. Because most modern authors, with the exception of Dr.
Julian Toulouse, have not dis- cussed in detail the question of base formations and empontilling techniques, I have had to concentrate on bottles excavated by the Canadian National Historic Sites Service. In general, these collections corroborated some of the conclusions in this paper.
West Saint Paul Antiques
Here is a way to date your Ball jars fairly closely by looking only at how the Ball name is embossed on the jar. Before we get into the Ball jars, here’s just a note concerning “Pontil Marks”. I see a lot of jars listed on ebay incorrectly with pontil marks. NO jars were ever made that had pontil marks. The approximately 1″ circular mark seen on the bases of some early Ball jars indicates machine manufacture and is a VALVE mark, which let air trapped between the mould and jar to escape during production.
tle on the pontil. In the process of identifying the marks, some relationships between the marks and certain types of bottles and their country and date of.
Dating antique bottles requires knowledge of the evolution of bottle technology and the ability to research manufacturers and bottling companies. Although glass bottles have been made for a few thousand years, it was not until the 19th century that bottle use became common, coinciding with the industrial revolution. By the midth century, embossed lettering and marking on bottle bodies and bases, denoting manufacturers and products, made more precise dating possible.
In addition to technology, products and manufacturers, certain types of glass colors will also aid in dating. Look for mold seams. The earliest bottles were hand-blown by a glassblower with a blowpipe and lack seams. Is the bottle highly symmetrical, but lacking mold seams? This type of bottle was probably dip-molded and dates after circa Is the base indented with an irregular to round pontil scar?
Early Nineteenth-Century American Blown Flint Glass: A Beginners Guide to Connoisseurship
See punty. Mentioned in? References in periodicals archive? To make a paperweight, A John Ditchfield paperweight Pietro placed a selection of the canes in a mould in the desired pattern and fused them within a globule of clear molten glass held by a steel rod called a pontil. Weights are a glass act; Got a good eye? These tiny masterpieces could be the start of a cracking collection.
Define pontil. pontil synonyms, pontil pronunciation, pontil translation, English reliable ways of dating Galle glass is the ground-out pontil mark on the base.
Not for commercial use including, but not limited to: Internet auctions or web sites. Blenko marks. This is the paper label used for a short time during WWII. Then they went back to the Foil label. Left over stickers were used until they were gone. Hand signed Blenko – Used in early All of these were personally done by William Blenko, Jr. All hand etches can only be found on designs.
Old Bottle Trademark Identification Made Easy
Toggle navigation Main Menu. Factor in the availability of genuine pieces that have been repaired or ground down for resale as undamaged, and the general misdirection, mislabeling or simple and wholly innocent ignorance which may lead pieces being sold under erroneous descriptions for inaccurate pricing, and you have a minefield sufficiently well-set to catch out even experienced collectors, let alone the novice. There are, however, a few general guidelines that should stand you in good stead, and a bit of preparatory work will enable you to avoid all but the most deliberate and subtly-orchestrated instances of misdirection.
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.
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. Some glassblowers grind a hollow into the base of their work, obliterating the natural punt scar.
Where the base of the work is sufficiently heavy, the entire natural base can be sawed or ground flat. Where the base of the work is concave, after the punt has been broken from the work, the punt may be used to attach a small gather of hot glass over the punt scar, into which a maker’s mark is impressed. As commonly used in the collectibles and antiques industry, the term refers to the mark impressed on a blown glass item over this scar, since many notable glassblowers have impressed or engraved makers marks in the punt scars of their work.
The base of a wine bottle, particularly when it is indented, has come to be known as a punt , although wine bottles have generally been mold-blown for centuries. In older enamelled glass there are often two pontil marks, indicating that the piece has been in the furnace twice, before and after the enamels were added.
The Georgian period spanned the years to and included the regency period of to This specific type of glass was either invented by George Ravenscroft in the late 17th century or by him and an Italian glass worker, Seignior Da Costa. In Ravenscroft set up a partnership with da Costa, intending to produce a new glass in a glass factory at Savoy, London. The introduction of this Georgian lead glass almost entirely replaced Venetian soda glass which had dominated the European market for centuries.
In addition vertical lines running down the bowl and striations in or around the bowl are among the other identifying features. And collectors should check carefully to make sure the foot has not been ground down or interfered with in any other way.
An 18th-century Frcnclr “flower pot” wine sliowing the regular, rounded conical profik and the bottlc excaoated from a site dating from to pontil mark in.
The information below has been distilled from a variety of sources, most notably from “Miller’s antique checklist – Glass” by Mark West, and “Eighteenth Century English drinking-glasses an illustrated guide ” by L M Bickerton full publication details of which you will find in the “books” section of “glass notes” , both of which books we recommend if this is a field in which you are thinking of starting a collection.
Several of the shapes below have been reproduced in later periods. During the s and s, there was a big revival in interest in Georgian and Regency styles, and the kuttrolf or cluck-cluck was produced for many years after the second World War by Holmegaard. For this reason, shape alone should not be the sole criterion when attempting to date a decanter. The colour and clarity of the metal, skill of execution, wear-marks etc.
Shape Period Funnel or conical – some examples to end s Bell – Ovoid onward Rounded onward. Feature Period Wrythen moulding – brief revival c Copper-wheel engraving onward more sophisticated by late s Enamelling onward Facet-cutting onward.