Duraglas bottle dating

Machine Made Dating

duraglas bottle dating

Find great deals on eBay for Duraglas in Collectible Modern Bottles. Shop with confidence. Grouping of bottle dating from the s to the s. .. Specifically for the pictured export beer bottle, the script Duraglas marking and the stippling (molded . Owens-Illinois Glass Company bottle manufacturers marks glass containers Glass Company (based in Alton, Illinois, with glass production dating from ). . of prescription bottles (similar to their bottles marked “OWENS”); “DURAGLAS“ .

Duraglas bottle UPDATE Likely a ketchup bottle from

Continental sold most of the H-A plants in Photo is of the mark as seen on base of small cobalt blue bowls. Conrad was not an actual glass company. Best guess for the time period during which bottles were made with this base marking would be from about to Most were made in a distinctive pale blue-aqua glass.

Some specimens carry a glassmaker mark as well such as D. In it became part of the Bell Telephone Company of Pennsylvania. Consolidated did not make their own jars, but had other glass companies make them with their logo.

duraglas bottle dating

Consolidated was primarily a distributor. This mark is confirmed on the heel of a clear soda bottle with a date code. CGC monogram, letters closely entertwined.

If you have information on the proper attribution of this mark, please contact me! This mark was evidently used by four or more different glass companies. ALSO, please see the two following entries! California Glass Company, California, Pennsylvania c. Harvey Teal, a researcher and historian on South Carolina history, author of a published book on the SC Dispensary flasks reports that he has documents proving that some of the dispensary flasks dating from the c.

Apparently, both glass companies made the dispensary bottles AND used a C. This particular Crystal Glass Company was started in c.

Company, West Berkeley, California In some cases especially bottles found in the eastern U. Since it operated for less than four months, and Toulouse gives no information on why he believes this mark can only be attributed to Campbell other than the fact that the initials do fitI am very skeptical that all bottles with this mark originate from that company, especially bottles and flasks with this mark found in the East.

CH along the lower heel of soda bottles, preceded and followed by various numbers; embossing may be faint ………Graham Glass Company, at their Checotah, Oklahoma glass plant. I believe most, of not all, of those bottles were made in the s or very early s, but some may date later. The trademark is evidently still in use and appears on the Emhart punt marks data base. Exact beginning and ending dates of Castle-Hanson and Leone Industries operations are unclear……anyone with solid info, please contact me!

Seen on lower heel of a clear packer bottle, probably made for vinegar. Presumably this would date from the earlier time period at Cincinnati. Period of use of this particular Chattanooga mark is uncertain. I have personally seen it embossed on the base of an amber machine-made medicinal flask, and just by general appearance, I would estimate that it dated from sometime in the s or s. More detailed information on this mark would be appreciated.

Chess piece Pawn ………see Capstan Glass Company. These initials are confirmed to exist on at least one bottle courtesy of Bill Lockhart and are almost certainly that of the Chicago Heights concern. They appear to be typical of ales from the s period. This marking or a similar variation is seen embossed on many jars that held Vaseline brand of petroleum jelly.

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Duraglas: Collectibles | eBay

CL C partially overlapping an L …………………. Flaccus Glass Company, Pittsburgh, Pennsylvania Occurs on the base of South Carolina Dispensary bottles.

Seen on base of wax sealer fruit jar. Mark was used primarily before about Clover-like logo seen on base of French pharmacy bottle photo courtesy Lynne Wertz Clover-like symbol seen on base of light aqua pharmacy bottle, probably from France, circa ? If you have information on this mark, please advise! Unknown Seen on base of fruit jar, c.

Their Makers and Marks. Cohansey Glass Manufacturing Company c. Business offices in Philadelphia, PA. Any info would be appreciated! Also— this mark has also been reported on the bases of prescription bottles from St.

Stephen, New Brunswick, Canada …….

duraglas bottle dating

Thanks to Glen Phillips! Crisa, now a division of Libbey Glass, with three factories located in Monterrey, Mexico. Crounse-Hinds, manufacturer of traffic signal systems. Interesting site for more info on traffic lights: Crounse-Hinds Traffic signal collector site.

duraglas bottle dating

Helens, Lancashire, England C. Seen on base of blackglass very dark olive green or olive amber ale bottles of British origin, which probably date circa s This mark may or may not have any relation to the following entry. Initials are seen on base of handmade blackglass ale bottles of British origin. Seen on base of amber strap-side flask circa period? Machine-made bottles will exhibit most or all of the diagnostic characteristics explained and illustrated below.

It should be noted that features 1, 3, 4, 5, and 6 are primary indicators of machine-made manufacture. Feature 2 mold seam diameter is not as strongly diagnostic as the primary indicators as mouth-blown bottles sometimes can have very fine mold seams.

duraglas bottle dating

Feature 7 describes a couple glass related features that are quite consistent in machine-made bottles, but not diagnostic, i. Click on the machine-made beer bottle picture above to see an illustration of this bottle showing the major diagnostic characteristics of a typical machine produced bottle. Vertical side mold seams which usually see the Note box below point 3 for an exception run up to the highest point of the finish and often onto the extreme top finish surface i.

The statement about machine-made bottles may seem contradictory finer but more visually distinct but is a function of the higher machine blowing pressure.

Owens-Illinois Glass Company

Most machine-made bottles have mold seams about the thickness of a hair while most visible mouth-blown mold seams tend to be several times as thick, higher, but more rounded. Mold seam thickness and how high it protrudes [height] is of only moderate use in telling a machine-made bottle from a mouth-blown bottle, though if a bottle fragment has a hair fine mold seam, it is highly likely to be from a machine-made bottle.

There are at least two additional finish related mold seams - one at the top of the finish which encircles either the bore or sometimes the outside of the upper lip portion of the finish sometimes both of these seams are present and a horizontal seam immediately below the finish which circles the extreme upper neck called a "neck ring parting line".

Click on the picture to the left to view an illustration which shows both of these seams or click machine-made finish to view an image which shows well the seam below the finish. Both seams are quite diagnostic of machine manufacture and are usually visible, though the seam at the top of the finish can be hard to see on some bottles - especially if the finish was fire polished.

In the glassmaking trade, these seams along with the side mold seams within the finish or just below are referred to as "neck ring" or "neckring" seams since they were formed by the separate neck ring portion of a machine mold Tooley These deviations are discussed on the main Bottle Dating page in a box under Question 2.

Click Exceptions to Question 2 to view this discussion. These are faint, somewhat wandering, hairline seams which if present usually are sporadically visible on the sides of machine-made bottles. The ghost seams are caused by the parison mold parts and if visible enough will be "attached" to the vertical seams in the finish.

Click on ghost seam to view a close-up explanatory picture of this attribute. Be aware that bottles and jars made by early to midth century press-and-blow machines do not usually have ghost seams, since the parison mold was usually one-piece, but will typically have a valve mark on the base see 6 below. A suction scar is present on the base of Owens Automatic Bottle Machine produced bottles. This distinctive base scar is easier to illustrate than describe; click on suction scar for a picture of a typical scar which exhibits the diagnostic "feathering" that surely indicates Owens machine production same image is below left.

This mark is distinctive to the suction process which feeds glass into the bottom of an Owens machine's parison mold. A movie clip showing this process in action is linked at the bottom of this box. Suction scars can not be produced by feed and flow automatic machines i.

P ress-and-blow machines usually have a round valve mark on the base but lack either the suction or parison scars. In any event, the suction scar is never found on mouth-blown bottles though suction scars are sometimes referred to as a pontil scar by the unfamiliar.

See the machine-made section of the Bottle Bases page for more information on these scars. It is likely that other types of suction based automatic bottle machines made in Europe in the s - and possibly later - also produced a suction scar on the base of their products [Pearson ].

However, a large majority of bottles in the U. The presence of a circular valve mark on the base of a bottle typically a wide mouth bottle or jar is sure evidence of machine-made manufacture by a press-and-blow machine. This is discussed further as Question 14 below. Machine-made bottles tend to have few if any bubbles in the glass and the thickness of the glass is usually more uniform throughout the bottle as compared to mouth-blown bottles.

This is especially true of later machine made bottles, i. The presence or absence of bubbles in the glass and relatively even distribution of the glass throughout the characteristic is not a primary feature of either machine-made or mouth-blown bottles, though there are strong trends. What these Diagnostic Features Indicate: Bottles with all the noted primary machine-made characteristics 1, 3- 5 including the suction scar on the base point 5 above and picture to the left can date no earlier than and are usually post Though patented and first used to a limited degree inthe first Owens Automatic Bottle Machine licenses were granted to other manufacturers in late making the effective "beginning" i.

Bottles which have all the primary characteristics noted above 1, 3, 4 without the suction scar 5 were produced by non-Owens automatic or semi-automatic machines and are somewhat harder to precisely date, though the vast majority post-date also. Narrow neck press-and-blow machine?