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33 Cards in this Set
- Front
- Back
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Three main ways to identify bottle types |
manufacturing technique bottle bases labelling and embossing |
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1st glass bottles |
Free blown (handmade), only kind of glass bottles until 1730s. gob of hot glass on blow pipe, molded on a marver table, removed with a pontil rod, gets cracked off.
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Pontil marks |
From pontil rod that gets glass off blow pipe.
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Cracked off finish |
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Laid on Ring |
Band of glass put around finish but wasn't worked in any way |
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Applied Finish |
extra glass blob put on and a finishing tool is used (spun) made between 1820s-1920s |
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Dip mold? |
free blown glass, dipped in a bucket to shape it, shoulders usually wider, no seams |
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Tooled Finish |
1820s-1920s free blown glass has neck made extra long and a finishing tool is used on the mouth. Can usually see tool marks |
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two piece mold |
1750s to 1880s for smaller bottles, seams run down sides and along base, could have embossed lettering |
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three piece molds |
1830s to 1920s the brand name was Ricketts 2 shoulders, and base molds could have embossing on shoulders |
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Post bottom |
1850-1930 seams down sides and base with a circular seam in center can emboss |
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Cup bottom |
1850-1930 side seams and along base (not through it) |
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Hutchinson stopper |
1879-1920 wire metal closure with rubber gasket, for pressurizing drinks |
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Lightening closure |
1875-1920 wire neck closure |
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Codd stoppers |
1872-1920 marble stopper popular in India and Japan |
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Turn paste mold |
1870-1920 spin mold, very geometric no mold marks, seams no lettering |
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Mechanization of bottle production? |
1881 multi-part molds (10+ parts) ghost seams from being moved from mold to mold |
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Owen's machine |
1904 first fully automated bottle making does process backwards (finish, body, base) has air suction scars and feathering |
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Crown seal finish |
1892-present |
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solarized glass |
had magnese dioxide colourless until sunlight, then purple 1875-1918 |
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ghost seams from multiple mold, mechanized bottle production (1881) |
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applied finish (1820-1920) |
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Tooled finish (1820-1920) |
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Two piece mold illustration 1750-1880 |
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Lightening closure 1875-1920 |
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Codd stopper 1872-1920 |
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Hutchinson stopper 1879-1920 |
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Dip mold (free blown glass) |
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Three piece mold bottle Rickett brand 1830-1920 |
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Two piece mold 1750-1880 |
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Post bottom 1850-1930 |
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Cup bottom 1850-1930 |
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Owen's scar 1904 fully automated |
