Shape is more indicative of function - i. Create your profile now for free, after 30 seconds, you will be ready to find THE ONE. Heavy duty bottles intended to be recycled and reused by the producer or distributor of the contained product (primarily soda, beer & milk bottles); or 3. Dip mold produced bottles may be any shape in the body but have more distinct lines from the shoulder down since that portion was actually molded (Jones & Sullivan 1989).
These two manufacturing types can be hard to differentiate from each other, though free-blown bottles are almost always round or oval in cross-section and have lines that are not sharp (i. For additional help review the This is a machine-made bottle or jar and will also usually have a highly diagnostic horizontal mold seam just below the finish that circles the neck. Many specialty bottles were imported from Europe, though that fact may be at times hard to impossible to ascertain. But any technique, once developed, can be used right up to the present - as many collectors know who have been so unfortunate as to rely too heavily on a popular termination date as sure evidence of true antiquity.
If so, move to NO - The bottle has NO embossing and NO apparent vertical side mold seams on the body, shoulder, or neck. In short, there was (and is) nothing to stop a glassmaker from using an obsolete method in the production of a bottle. Please be aware that in order to gain the maximum information about any particular bottle (e.. Having stated the above, there are still many diagnostic features or characteristics that provide a high probability of both dating and typing a bottle with some precision.