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Is the base indented with an irregular to round pontil scar?
This, and no mold seams, is another indication of a hand-blown bottle.
In many instances (especially in the case of Owens-Illinois bottles), the glass manufacturers’ logo is in combination with a date code.
This is another indication of a machine-made bottle. Most bottles with embossed lettering date from the late 19th century and later. Keep in mind that older technology often persisted and some bottles date later than you might think.(Note: In general, local/regional Coke Vitro mark " data-medium-file="https://i1com/ fit=402,346&ssl=1" class="size-thumbnail wp-image-580 jetpack-lazy-image" title="vitro-mark-on-coke-bottle" src="https://i1com/ resize=150,150" alt="Vitro mark on 2008 Commemorative Coke Bottle" width="150" height="150" data-recalc-dims="1" data-lazy-srcset="https://i1com/ zoom=2&resize=150,150&ssl=1 300w" data-lazy-sizes="(max-width: 150px) 100vw, 150px" data-lazy-src="https://i1com/