Graniteware: Enameled Metal Kitchenware
Graniteware, also called enamelware or agateware, is kitchenware made by fusing a porcelain enamel coating onto a base metal (typically sheet iron or steel). Produced from the 1870s through the present day, graniteware was the dominant American kitchen material before aluminum and stainless steel. Its characteristic mottled, speckled, or swirled surface patterns in colors ranging from gray and blue to red, green, and brown make it one of the most visually appealing categories of utilitarian antiques.
History & Production
- 1848: First American patent for enameled ironware granted to Charles Stumer
- 1870s-1880s: Mass production begins; St. Louis Stamping Co., Lalance & Grosjean, and Manning Bowman among early producers
- 1880s-1920: Golden age of graniteware; dozens of American and European manufacturers produce kitchen, dairy, and sanitary ware
- 1920s-1940s: Competition from aluminum and glass reduces market share; production simplifies
- 1940s-present: Continued production, primarily in solid colors; vintage pieces become collectible
Types & Patterns
| Pattern | Description | Collector Appeal |
|---|---|---|
| Gray mottled | Classic speckled gray; most common | Moderate |
| Blue & white swirl | Bold swirled pattern; highly decorative | Very high |
| Brown & white swirl | Rich chocolate and cream swirl | High |
| Chrysolite (green & white) | Green and white swirl | Very high |
| Red & white swirl | Rare red and cream pattern | Extremely high |
| Cobalt blue solid | Deep blue enamel, white interior | High |
| Emerald Ware | Green with white flecks | High |
| End of Day | Random multi-color swirl from leftover enamel | Very high |
Major Manufacturers
- Lalance & Grosjean (New York): "Agate Nickel-Steel Ware" -- premium quality
- St. Louis Stamping Co.: Early and extensive producer; became part of National Enameling
- Manning, Bowman & Co. (Connecticut): High-quality pieces with distinctive forms
- Columbian Enameling & Stamping (Indiana): Major producer of utilitarian ware
- Vollrath (Wisconsin): Long-running manufacturer, still in business
- European makers: French, German, and Scandinavian graniteware often features finer enameling
Auction Price Ranges
| Item | Low | Mid | High |
|---|---|---|---|
| Gray mottled coffeepot | $20 | $60 | $150 |
| Blue & white swirl coffeepot | $75 | $250 | $800 |
| Red & white swirl piece | $150 | $500 | $2,000+ |
| End of Day swirl piece | $100 | $400 | $1,500 |
| Chrysolite coffeepot | $100 | $350 | $1,000 |
| Child's set or miniature | $50 | $200 | $800 |
| Unusual form (fish kettle, muffin pan) | $40 | $150 | $600 |
Condition Factors
- Enamel loss: Chips, flakes, and worn spots in the enamel are the most common damage; extent directly affects value
- Rust: Exposed metal beneath lost enamel develops rust; surface rust is cosmetic, deep pitting is structural
- Dents: Minor dents are acceptable on utilitarian pieces; severe dents that crack enamel reduce value
- Handle condition: Original handles (wire bail, wooden grip) should be intact; replacements reduce value
- Interior condition: Interior enamel wear is expected from use; heavy interior damage reduces appeal more than light use marks
Collecting Tips
- Color drives value: red, chrysolite, and blue-and-white swirl patterns command the highest prices
- Unusual forms are more desirable than common ones; look for fish kettles, cream cans, milk pails, and children's sets
- Miniatures and salesman's samples are rare and highly prized
- Complete coffee or tea sets (pot, creamer, sugar, cups) in matching patterns bring significant premiums
- French graniteware often features more refined patterns and artistic merit than American utilitarian ware
- Store advertising pieces and those with original paper labels command premiums
- Graniteware is still produced; vintage pieces are distinguished by heavier gauge metal, older construction methods, and wear patterns