There are twelve important factors that determine the value of any antique bottle.Any one of these factors is frequently not sufficient in and of itself to make a bottle valuable.The Town of Baltimore, on the west side of the Jones Falls, was founded and laid out on July 30, 1729; with Jonestown and Fells Point preexisting to the east.The three settlements, covering 60 acres, became a commercial hub and in 1768 became the county seat.It is the combination of these factors that determine value.Recently milk bottles and painted label soda bottles, both of which were made after the turn of the century, have become collectible because there is a good supply of these items and there is great variety of both types of bottles.
Bottles made after the Civil War but before the first World War are referred to as "smooth based".
and is not part of any county; this makes it the largest independent city in the United States. As of 2016, the population of the Baltimore metropolitan area was estimated to be just under 2.8 million, making it the 21st largest metropolitan area in the country.
After a decline in major manufacturing, industrialization, and rail transportation, Baltimore shifted to a service-oriented economy, with Johns Hopkins Hospital (founded 1889) and Johns Hopkins University (founded 1876), now the city's top two employers.
The Baltimore County area northward was used as hunting grounds by the Susquehannocks living in the lower Susquehanna River valley who "controlled all of the upper tributaries of the Chesapeake" but "refrained from much contact with Powhatan in the Potomac region." Pressured by the Susquehannocks, the Piscataway tribe of Algonquians stayed well south of the Baltimore area and inhabited primarily the north bank of the Potomac River in what is now Charles County and southern Prince George's County south of the Fall Line.
European colonization of Maryland began with the arrival of an English ship at St. Europeans began to settle the area further north, beginning to populate the area of Baltimore County, The colonial General Assembly of Maryland created the Port of Baltimore at old Whetstone Point (now Locust Point) in 1706 for the tobacco trade.
Only a few years ago bottles in these two categories rarely brought more than a few dollars but as interest in these categories increased so did the price. Whenever demand increases or outstrips the supply of a collectible, the price goes up.