Home / Color Changing Coffee Mugs / 13 Inch Mortar Dictator , in Front of Petersburg, Va. (U.S. Civil War) Color Changing Mug 11oz
  • 13 Inch Mortar Dictator , in Front of Petersburg, Va. (U.S. Civil War) Color Changing Coffee Mug 11oz Default Title 11oz - Go Mug Yourself
  • 13 Inch Mortar Dictator , in Front of Petersburg, Va. (U.S. Civil War) Color Changing Coffee Mug 11oz - Go Mug Yourself
  • 13 Inch Mortar Dictator , in Front of Petersburg, Va. (U.S. Civil War) Color Changing Coffee Mug 11oz - Go Mug Yourself
  • 13 Inch Mortar Dictator , in Front of Petersburg, Va. (U.S. Civil War) Color Changing Coffee Mug 11oz - Go Mug Yourself
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13 Inch Mortar Dictator , in Front of Petersburg, Va. (U.S. Civil War) Color Changing Mug 11oz

13 Inch Mortar Dictator , in Front of Petersburg, Va. (U.S. Civil War) Color Changing Mug 11oz

100 in stock

$17.99 USD
$17.99 USD
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13 Inch Mortar "Dictator," in Front of Petersburg, Va. (U.S. Civil War) Color Changing Coffee Mug Design

This dynamic design captures the essence of the "Dictator," the formidable 13-inch mortar that played a significant role in the Siege of Petersburg. The artwork presents a compelling visual narrative, transforming with the addition of heat to reveal the iconic artillery piece in its historical context.

Visual Representation

Initially, the mug’s surface displays a scene hinting at the battlefield environment. Upon pouring a hot beverage, the color-changing element springs to life. The full image showcases the "Dictator" mortar, prominently positioned on its railroad flatcar. The surrounding landscape, based on period photographs, provides a realistic backdrop depicting the fortifications and landscape around Petersburg, Virginia.

Symbolism and Meaning

The design serves as a potent reminder of the industrial scale of warfare in the American Civil War. The "Dictator" represents the Union's technological advancements and its ability to bring heavy artillery to bear against entrenched Confederate positions. The high, arcing trajectory of the shell, implied by the design’s perspective, symbolizes the relentless, overhead bombardment that characterized siege warfare.

The color-changing aspect adds an additional layer of meaning. As the image emerges with heat, it mimics the fiery blast of the mortar itself, bringing the historical moment to life. The visual transformation also highlights the psychological impact of the "Dictator," representing the constant threat and material superiority the Union forces held over the Confederate defenders.

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Color-changing ceramic mugs with a glossy finish, black exterior, and white interior. Available in one size: 11 oz (≈330 ml). Heat-reactive coating reveals your custom design when filled with hot liquid. BPA- and lead-free, with a comfortable C-handle.

This mug brings a playful twist to the daily coffee or tea ritual. At room temperature, it looks like a simple black mug with a glossy finish. But add a hot beverage, and your chosen design fades into view, showing vivid colors against the white interior.

The ceramic body is durable enough for repeated use, while the C-shaped handle balances comfort and grip. Printing uses sublimation techniques that fuse color into the heat-reactive surface for crisp results when the design appears.

  • Material: ceramic with glossy black exterior and white interior.
  • Size: one standard size, 11 oz (≈330 ml).
  • Finish: glossy glaze with heat-sensitive surface.
  • Printing: sublimation process produces crisp, vibrant colors.
  • Safety: BPA-free and lead-free, suitable for everyday drinks.
  • Effect: design is faintly visible when cold, fully revealed when hot.

Perfect as a novelty gift or a fun personal mug, the heat-reactive design makes coffee breaks more engaging. It works well for morning coffee, afternoon tea, or hot chocolate.

  1. Daily routine: fill with any hot beverage to reveal your chosen artwork.
  2. Gifting: the “magic” reveal makes it a memorable present for birthdays, holidays, or office exchanges.
  3. Office use: sparks conversation while still being practical for everyday drinks.

Note: for best results, avoid designs that rely heavily on deep black backgrounds, as they may blend with the mug’s surface when cold.

Unlike standard mugs, color-changing mugs require gentler care to preserve the heat-reactive coating. Hand-wash only — avoid the dishwasher and abrasive scrubbers, which can damage the finish and reduce the effect.

The mug is safe for short microwave use when heating liquids, but repeated high-heat cycles may shorten the lifespan of the coating. Always allow the mug to cool before washing.

Available in one classic size: 11 oz (approximately 330 ml). It’s large enough for most standard coffee makers and fits comfortably in most cabinets.

Size guide

All measurements are product dimensions in inches.

11 oz
Height (in) 3.78
Diameter (in) 3.23
Diameter w/ handle (in) 4.76

Note: measurements are approximate; slight variations may occur due to manufacturing tolerances.