These groove ring wax seal finishes, regardless of the specific producing method applied (discussed afterwards), appear when seeking down for the rim with the finish to get two circular and parallel ridges having an indented groove separating them. This groove was known as an "annular groove" by early glassmakers.
Quite comparable formed mustard bottles of French origin with pontil scars were being discovered around the Steamship Bertrand which sank within the Missouri River in April 1865. These mustard bottles were being Among the many not many bottle styles salvaged from that ship that exhibited pontil scars when this author considered the collection in Iowa recently (empirical observations 2015).
Click on the subsequent backlinks to look at additional images of the common measurement and style and design bottle: foundation check out; close-up in the higher human body, neck, and complete with several of the tooling striations in proof and also the ending position of the aspect mildew seam (the place it had been "worn out") reasonably apparent. This mould seam ending level marks the furthest level on the "neck" that the outside pads of the finishing tool could get to.
Canning jars have been obtained by customers in many different ways. Maybe the most common way was possible outright buy for dwelling canning use.
Ground rims on other sorts of mouth-blown bottles have been mainly a late 19th (1880s and later on) to early twentieth century (mid to late 1910s) attribute and most often (but not completely) observed on liquor flasks (normally just above molded external screw threads), inks, and ointment jars made all through that interval. See the "ground finish" dialogue within the Bottle End Sorts or Models webpage To find out more. Click on the following backlink to check out an 1888 patent for any "Glass-Grinding Machine" which displays a fruit jar in position having its rim floor down: Patent #386,738 - Glass-Grinding Equipment, July 24, 1888.
e., ease of manufacture, impermeability on the environment, and inert in contact with practically all meals product or service contained in imparting no "off" flavors (Bender 1986; Jones 1993). (Be aware: Bender  includes an excellent even though succinct overview of early nineteenth century meals preservation endeavours, Even though the book is generally dedicated to the most important closures employed by the glass packing market over the 1st 50 percent with the twentieth century.)
(Observe: A single even more observation about these San Francisco produced jars is the fact the original mould engraver or "mould cutter" for that Reducing jar as well as the mould cutter for the later two jars seem like two distinctive folks since the style of the embossed lettering is distinctly various. Especially, the later on mould cutter was the a person who made a particular "R' by having an outwardly curving angled leg. This "R" is a particular aspect discovered on scores of different Western bottles that were almost absolutely manufactured at the San Francisco & Pacific Glass Operates concerning about 1876 plus the mid-1880s, and possibly the latter days [early to mid 1870s] of one or both equally on the precursor glass corporations [Pacific Glass Operates and/or San Francisco Glass Is effective].
The subsequent absolutely are a handful of summary relationship observations or estimations unique to ball neck panel/extract bottles according to the references cited in this portion earlier mentioned, many bottle maker catalogs and also empirical observations through the creator outside of Those people observed in the druggist bottle dating backlink just previously mentioned:
S. Coverage of all the types is (naturally) difficult though the following incorporates some added photographs/details about a number of other kinds of spherical pickle/preserved foodstuff bottles to point out many of that further wide range:
These are not slender bodied like one other sauces pictured right here while you'll find other obvious similarities. (As emphasised all over this Web site, this is One more illustration of The reality that in all items related with bottle identification, you will discover just about usually exceptions.) A few other firms used bottles of the design and style from no less than the 1880s to effectively in the 1910s And perhaps later, although the vast majority on the beehive sauce bottles encountered are from Durkee (Zumwalt 1980; empirical observations).
Dating summary/notes: The several jars presented With this portion only scratches the surface area of The variability of jars that utilized some sort of the exterior ongoing threaded "Mason" closure throughout the interval from ahead of the Civil War with the overall 20th century into the current. It should be noted that Mason jars almost always have some kind of proprietary or brand embossing on your body and/or the base; unembossed examples are extremely uncommon (Creswick 1987).
Courting summary/notes: Like all kinds of other (although not all) bottle styles outlined on this webpage, the overall courting of square and rectangular pickle/preserved foods bottles or jars can not be completed based upon shape by itself. As a substitute, it should be accomplished dependant on production related diagnostic capabilities (like located all over this Internet site) and/or via investigate on the historical record when doable with corporation embossed bottles or These with the first labels intact.
Horse radish: Just like several food/condiment bottles, horse radish was bottled in numerous shaped bottles. The overall form described and pictured in this article, Together with the bulge or ring for the junction of your neck and shoulder, was a favored style container for dispensing horse radish. This normal design and style was also used for many different other meals goods which essential a broad mouth for information entry and they are practically just like many of the "pickle" bottles talked about next (Zumwalt 1980).
How did the aspect mold seams vanish and why the horizontal seam over the finish? The quick answer is usually that these bottles were being all his response made by press-and-blow devices which just leave guiding these distinct features in addition to a valve/ejection mark on The bottom.