Preliminary identification

Pfaltzgraff 10-Gallon Keystone Stoneware Crock

Photo reference

2 uploaded photos

Overview

A massive 10-gallon salt-glazed stoneware crock featuring the iconic blue cobalt 'Keystone' mark. This utilitarian vessel was the backbone of the American pantry, designed for preserving large quantities of food through the winter.

Story

Before modern refrigeration, these crocks were the high-tech appliances of the home. The '10' inside the Pennsylvania keystone symbol isn't just a logo; it's a promise of capacity for a family's entire winter supply of pickles or kraut.

Maker / Origin

The Pfaltzgraff family began potting in York County in the early 1800s, but it was the 1894 factory that revolutionized their output. They transitioned from simple redware to durable stoneware, eventually becoming a household name across America.

Condition & Value

The crock shows a visible vertical crack near the rim and some surface staining. While these 'battle scars' prove its age and use, significant cracks can reduce the value by 50% or more compared to a 'ringing' mint specimen. Condition: Good/Fair. Large capacity crocks (10+ gallons) are highly sought after by decorators.

Full Research

See what it's actually worth.

Sold comps, value drivers, and venue guidance pulled from recent auction results.

Build on this identification

Layer in sold comps, value drivers, and venue guidance.

Market Analysis

Comparable demand stays strongest where maker, originality, and venue confidence line up. Broader examples still trade, but the range tightens quickly when provenance, condition, or selling lane fit is missing.

Value Drivers

  • Strong maker attribution with credible period details
  • Better-than-average condition for the category
  • Broader demand rises when presentation and finish feel intact

Concerns

  • Decorative-only demand limits the ceiling
  • Surface wear or missing provenance can compress the range fast
  • Regional sale lanes often underperform specialist venues

Best Venue

Specialty auction or a focused dealer with buyers already in this lane.

Comparable Sales

5 comps
Regional auction· Jun 2024
$1,280

Signed example with light edge wear and original frame.

Dealer archive· Mar 2024
$1,450

Comparable format with stronger provenance and cleaner surface.

Marketplace sale· Jan 2024
$980

Smaller related piece with visible craquelure and trimmed margins.

Estate platform· Oct 2023
$1,150

Period match with softer condition and weaker subject matter.

Auction result· Aug 2023
$1,375

Close market lane comp with similar material and presentation.