Dating Duraglas Bottle Identification

The number below 14 is the mold cavity number.

Dating duraglas bottle identification. Owens illinois mark with 1947 date code on amber bottle. Looks like a s to s ketchup bottle to me. Old bottle identification and dating guide. Duraglas mark introduced in 1940 on owens illinois bottle.

This page and associated sub pages allows a user to run an american produced utilitarian bottle or a significantly sized bottle fragment s through a series of questions based primarily on diagnostic physical manufacturing related characteristics or features to determine the approximate manufacturing age range of the item. Diamond oval i trademark on soda bottle made in 1958. Need help jar dating duraglas bottle soda bottle. Duraglas was the name given to a process used by the owens illinois glass company where the surface of the hot just produced bottles were sprayed on the body shoulder and neck not base or the top of the finish with a stannic chloride tin iv chloride vapor that allowed the tin to bond to the outer surface providing scratch.

An a may mean soda bottle etc. Owens illinois mark on clear bottle. Thus the need for many web pages covering an extensive amount of descriptive information. Second mark used i inside of an o mark on base of emerald green jar.

Diamond o i mark on bottom of emerald green jar. A single digit date code generally means the bottle was produced before 1947 a single digit date code with no period indicates a date in the 1930s. However the process of bottle identification and dating is quite complex with many exceptions. The general rule when dating glass with the o i symbol is the number to the left of the symbol is the plant code and to the right of the symbol lies the date code.

Owens illinois gl journal of dairy science 1943 vol 26 no 4 duraglas bottle dating bottles marked with 3iv and duraglas coca cola soda water 6 fluid ounces. A listing or map of all the main subject pages and connected sub pages found within this website is found at the following link website map. Lowex mark on glass insulator made by owens illinois. A single digit date code followed by a period 4 indicates a date in the 1940s.

Bottle dating is approximate and just intended to give a relative placement in bottle making history. For example 5 is 1935 2 is 1932 etc. The number to the left bottle the symbol 9 is the plant number and means it was made in streator il. Other numbers such as the 7 in exhibit c are specific to the production plant and letters such as the a in exhibit e usually stand for the glass model e g.