dos. This new declaration in the servers-produced bottles may sound inconsistent (better however, even more aesthetically type of) it is a purpose of the greater servers blowing tension. Earlier servers-generated bottle (1905-1920s) are apt to have quite thicker/higher mildew and mold seams than just afterwards servers-made bottle considering the growing precision inside the mold machining and you can equipments as a whole as go out developed. (Shape seam thickness as well as how high they protrudes [height] are from just reasonable use in advising a server-produced bottles from a mouth-blown bottle, even if if the a bottle fragment has a hair good shape seam, it is highly apt to be away from a servers-generated bottle.)
The side mildew seams of all server-produced bottle were finer (narrower minimizing) – whether or not sometimes sharper and you will/otherwise aesthetically distinctive line of than simply throat-blown bottles mildew seams while most mouth area-blown bottle have very dense and you can collection of seams due to smaller accurate mildew and mold construction otherwise fitted
4. “Ghost” seams usually are introduce toward neck, neck, and/otherwise muscles of the bottle in the event the produced by a blow-and-strike server (including the Owens Automatic Container Servers). The fresh ghost seams are due to this new parison mildew bits and you may in the event the visible enough would-be “attached” on the vertical seams regarding the end. Click on ghost seam to gain access to an almost-upwards explanatory image of that it attribute. Know that container and you can containers made by early so you can mid-20th millennium push-and-blow machines don’t will often have ghost seams, just like the parison mildew is always one to-portion, but will typically have a device mark-on the bottom (come across #6 less than).
5. 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. (Note: 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.e. “gob feeders”) though a similar type mark without the feathering is induced by the parison/blank mold of most other blow-and-blow machines – including up to the present day. Press-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. (Note: It is likely that other types of suction based automatic bottle machines made in Europe in the 1920s – and possibly later – also produced a suction scar on the base of their products [Pearson 1928]. However, a large majority of bottles in the U. S. with distinct suction scars were likely Owens machine produced.)
Extremely host-generated package enjoys mildew seams regarding the density of a hair while most apparent lips-blown mold seams include a few times because thick, large, however, a great deal more circular
six. The presence of a curved device mark-on the base of a bottle (typically an extensive mouth area package otherwise container) is yes proof servers-produced manufacture by the a click-and-blow servers. This is exactly discussed next given that Matter #14 lower than.
eight . Machine-produced package tend to have partners or no bubbles regarding cup while the thickness of glass is sometimes a lot more uniform throughout the package as compared to mouth area-blown package. This is especially true out of later bulk manufactured bottles, we.elizabeth. from the late 1920s on. (Note: The newest visibility or absence of bubbles on cup and apparently even shipment of your glass throughout the trait isn’t an effective primary function of sometimes host-generated or lips-blown bottle, however, there is actually solid style.