Preliminary identification

James Keiller & Sons Blue Glazed Stoneware Marmalade Jug

Photo reference

1 uploaded photo

Overview

A charming miniature stoneware jug featuring a mottled blue salt-glaze, originally used to package luxury Dundee marmalade. The 'JK' and crown seal on the shoulder served as a royal warrant and a mark of premium quality in Victorian pantries.

Story

In 1797, a storm stranded a Spanish ship in Dundee, Scotland, carrying a cargo of bitter Seville oranges. Janet Keiller boiled them with sugar, creating the world's first commercial marmalade and a global breakfast empire.

Maker / Origin

James Keiller & Sons was the first commercial marmalade producer in the world, famously receiving a Royal Warrant from Queen Victoria. Their iconic white and blue stoneware jars became so ubiquitous that they are now foundational pieces for antique bottle and crock collectors.

Condition & Value

The jug shows significant label loss and surface staining consistent with being buried or stored in a damp cellar. The stoneware itself appears structurally sound without major cracks, though the wear to the glaze reduces the value compared to a pristine example.

Full Research

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

Build on this identification

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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.