
Bottle & Dump Digging
Antique glass from old privies, dump sites, and cellar holes.

Bottle and Dump Digging — Before municipal garbage collection existed, households buried everything — medicine bottles, ink wells, stoneware crocks, ceramic figures — in privy pits, ash dumps, and cellar fills behind their homes. Sealed underground for a century or more, these deposits preserve antique glass in remarkable condition, often still bearing the embossed names of local druggists, soda bottlers, and patent medicine companies long since vanished. Bottle digging is as much research as excavation. Identifying likely properties through city directories, Sanborn maps, and county records is half the hobby — a well-researched privy from an 1870s property can yield pontil-base medicines, blob-top sodas, and figural bitters worth hundreds of dollars to collectors. Like all forms of treasure hunting, this means landowner permission, respect for the property, and leaving every site cleaner than you found it. The community is active and generous with knowledge — the best finds and the best guidance both come from time spent in the forums.
Finding Dump Sites — Using historical maps, aerial photos, and local records to locate old privies, dumps, and bottle dumps from the 1800s–1930s.
Dating & Identification — How to date antique bottles by pontil marks, mold seams, lips, and glass color — and which eras produce the most collectible finds.
Digging Techniques — Tools, probing methods, shoring techniques, and how to extract fragile glass without breaking it.
Safety & Best Practices — Cave-in risks, hazardous materials, air quality in privy holes, and how to dig safely and responsibly.
Laws & Permissions — Understanding property rights, trespass laws, and how to get landowner permission before breaking ground.
Forum Discussion — Share your finds, ask dating questions, and connect with experienced bottle diggers in the community.
Bottle Era Quick Reference

Pre-1860
Pontil-base bottles, free-blown glass, and open pontil scars.

1860–1900
Iron pontil, applied lips, blob tops, bitters, and medicine bottles.

1900–1920
Machine-made bottles begin appearing, including early automatic bottle machine bases.
Getting Started Tips
Get landowner permission before digging on any private property — this is non-negotiable, even for land that looks abandoned.
Research site history first — old maps, county records, and local historical societies can point you to real 1800s–1930s dump sites instead of digging blind.
Watch for cave-ins and hazardous materials — old privy holes and dump pits can have unstable walls, sharp glass, and buried metal.
Dig carefully and slowly near glass — a rushed shovel is how a rare bottle becomes a shard.
Learn basic dating on-site — pontil marks, mold seams, and lip style can tell you in seconds whether you’re looking at something worth carefully extracting or just modern debris.
Refill what you dig — responsible diggers close their holes, both out of courtesy to landowners and to keep access open for the next visit.
Clubs and Guides
Clubs & Organizations:
Federation of Historical Bottle Collectors (FOHBC) — The primary national nonprofit for the hobby, founded in 1969, running conventions, a magazine, and a virtual museum.
Expert Guides:
Historic Glass Bottle Identification & Information Website — The definitive free dating/ID resource, hosted by the Society for Historical Archaeology.
Peachridge Glass — A comprehensive collector news and research site run by an FOHBC board member.