Dating bottles by their tops and bases
Each aspect of the bottle's design, age and character must be taken into consideration when determining its value.
A bottle that has a beautiful, interesting or significant design will generally be more valuable than one that is plain.
The Federation of Historical Bottle Collectors is a nonprofit organization for historic bottle collectors.
Upon joining, you'll receive their bimonthly publication Bottles and Extras, free listings for sale in the publications, one free "wanted" ad a year, and other resources offered through the organization.
While not all old bottles are valuable, an older bottle is more likely to be worth more than a newer one.
Seams and pontil marks are two of the ways you can determine a bottle's age.
You can also find plenty of advice for avoiding e Bay scams and how to make money selling bottles.
While an accurate evaluation can only be done by someone experienced with antique bottles, you can get an idea of how much a bottle is worth by considering these factors.
The closer a bottle is to original condition the more value it will have.
Items that can increase the value of a bottle are: There are other things to take into consideration when evaluating old bottles.
There are also lifetime and associate memberships available, too.
It's always a good idea to check the online auctions on e Bay for antique bottles.
The publication is going to be your main source for learning about your bottle values.