|Description||Vegetable Oil/Salad Dressing bottle recovered from City Centre Plaza, c. 1899-1920. The colorless bottle has a long neck that tapers out to long cylindrical body. The rim has a tapered collar finish and shows evidence of glass machine manufacture. A 2.75 inch long neck flares out to 1 inch shoulder to a 4.5 shoulder to 5.5 cylindrical body. The base of the bottle is slightly concave.|
|Object Name||Bottle, Condiment|
|Collection||3D - Food Service Tools & Equipment|
|Title||Vegetable Oil/Salad Dressing bottle recovered from City Centre Plaza, c. 1899-1920.|
|Provenance||20 boxes of archaeological material excavated from the City Centre Plaza site at 950 Main at Middlefield in Redwood City. Excavation for development, done by Basin Research Associates.|
Olive oil was bottled in an assortment of different shaped bottles during the era (early 19th to mid-20th centuries) with most types being cylindrical or round in cross-section. These type bottles are tall and narrow, being at least 3 times taller in the body than the width. It also has a crudely tooled (or possibly rolled and refired) finish, a crudely pushed up base (over 1.5" from heel to top of the push-up/kick-up) that is off center and obviously not mold formed, and a visible though slight splaying out of the glass near the heel. This latter attribute is often indicative of free-blown manufacture, although some dip molded bottles can express this feature if the glass was still plastic and "flowed" after withdrawal from the dip mold.
A tapered collar finish is distinguished by its height being about equal to or more than it's width, with a gradual wider taper towards the base. The outside surface of the finish is usually flat, though it is often slightly concave or with very slight rounding.
This finish was very commonly used on all types of proprietary and patent medicines (bitters, tonics, cures, balsams, etc.), some liquid/sauce type food bottles, large ("bulk") ink bottles, occasional liquor & figured flasks (commonly on gin bottles; example below), and less frequently on just about any other class of liquid containing bottles. Larger examples were sometime called a "wine finish" (Fairmount Glass Works 1910). It is rarely if ever seen on small ink or perfume/cologne bottles, wide mouth food bottles, beer bottles, and druggist and drugstore bottles. However, because of its relatively wide application and wide period of use, this finish style has limited utility in the dating or typing of a bottle; other diagnostic features must be used.
|Dimensions||H-10 W-2.5 D-2.5 inches|
City Center Plaza
Food, Preservation and Storage
Olive oil industry