Home / Color Changing Coffee Mugs / Petersburg, Virginia. Engineers at H.Q., Army of the Potomac (U.S. Civil War) Color Changing Mug 11oz
  • Petersburg, Virginia. Engineers at H.Q., Army of the Potomac (U.S. Civil War) Color Changing Coffee Mug 11oz Default Title 11oz - Go Mug Yourself
  • Petersburg, Virginia. Engineers at H.Q., Army of the Potomac (U.S. Civil War) Color Changing Coffee Mug 11oz - Go Mug Yourself
  • Petersburg, Virginia. Engineers at H.Q., Army of the Potomac (U.S. Civil War) Color Changing Coffee Mug 11oz - Go Mug Yourself
  • Petersburg, Virginia. Engineers at H.Q., Army of the Potomac (U.S. Civil War) Color Changing Coffee Mug 11oz - Go Mug Yourself
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Petersburg, Virginia. Engineers at H.Q., Army of the Potomac (U.S. Civil War) Color Changing Mug 11oz

Petersburg, Virginia. Engineers at H.Q., Army of the Potomac (U.S. Civil War) Color Changing Mug 11oz

100 in stock

$17.99 USD
$17.99 USD
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Petersburg, Virginia: A Civil War Moment on Your Mug

This color-changing coffee mug unveils a scene from the American Civil War, specifically at Petersburg, Virginia, during the siege. The design focuses on the engineers of the Army of the Potomac, depicted near their headquarters. The artwork offers a glimpse into the often-unseen aspects of war—the meticulous planning and vital logistical efforts behind the conflict.

Visual Elements and Representation

The central imagery likely depicts Union engineers engaged in their duties. Depending on the artist's interpretation, this might include individuals consulting maps, surveying the terrain, or actively involved in the construction of fortifications. The headquarters setting provides context, highlighting the strategic importance of Petersburg and the Army of the Potomac's efforts to capture the city. The color-changing feature is key as it adds an element of visual surprise and reveals the design with the addition of heat.

Meaning and Symbolism

The design serves as a tribute to the unsung heroes of the war effort, the military engineers. Their work symbolizes the intersection of warfare and technology, and the meticulous preparations required for a successful siege. The mug itself becomes a vessel for historical memory, reminding us of the strategic significance of Petersburg and the dedication of those who served. The transformation from a dormant to an active image, activated by heat, visually mirrors the unfolding of the siege itself, as the engineers' plans come to life.

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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.