What are the different “bases” in dating….?

Dating Canadian Zippos There are numerous sites around the internet that give dating charts for Zippo Lighters, and there are also dating guides in many of the Zippo Books. Dating lighters made at the Canadian factory is a little more difficult, and often confusing, but with a little detective work, many of the clues are there. There is still much work and research to be done, and this page is by no means complete. If you can add any information please feel free to contact me The factory in Canada opened in and closed in

What is Carbon Dating? Carbon is one of the chemical elements. Along with hydrogen, nitrogen, oxygen, phosphorus, and sulfur, carbon is a building block of biochemical molecules ranging from fats, proteins, and carbohydrates to active substances such as hormones.

What a bottle was used for is referred to on this website as a “bottle type” or “type of bottle”, i. The process of ascertaining what a bottle was used for is termed typology or simply “typing” and is the subject of this webpage and the many connected sub-pages. Since it was the contents of a bottle that guided the consumer in making a selection, not the bottle itself, contents are the most important consideration in establishing categories for bottle classification Herskovitz Glass containers are engineered along very specific design principles.

Container size, orifice diameter, neck length, and other attributes as well as the rations between such morphological characteristics are determined largely by such basic principles as frequency of access, amount of contents removed with each access, and the type of content bulk solid, liquid, semi-liquid, etc. Most bottle shapes were closely associated and identified with a certain product or products as “form follows function” to a large degree in bottle shapes and styles.

However, there were many exceptions and different “standard” bottle styles have varying degrees of fidelity to type with some shapes less connected to a specific product than soda and beer bottles. Of course, there will always be a few wild exceptions that leave one scratching their head as to why that shape was used for that product. The embossing is also upside down relative to the bottle base because the bottle was inserted upside down into to a metal dispenser for use Rochester Midland Co.

Oddities like this abound in the historic bottle world and one just needs to be aware that there are always exceptions to any general statement or “rule” with the dating and typing of bottles.