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Assist. Engineer H.P. Gregory, Usn(2) (U.S. Civil War) Color Changing Mug 11oz

Assist. Engineer H.P. Gregory, Usn(2) (U.S. Civil War) Color Changing Mug 11oz

100 in stock

Regular price $17.99 USD
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Assist. Engineer H.P. Gregory, USN(2) Color Changing Coffee Mug - Design

This unique coffee mug design pays tribute to Assist. Engineer H.P. Gregory of the U.S. Navy during the Civil War. The central visual element is a depiction of an official naval insignia from the period, subtly distressed to evoke a sense of history and the rigors of service. Within the insignia, the bold lettering "USN" (United States Navy) is prominently displayed, anchoring the design in its historical context.

The mug's most captivating feature is its color-changing effect. When cold, the design may appear muted, perhaps in grayscale or sepia tones, reflecting the somber and challenging era. However, as hot liquid is poured into the mug, the colors transform, potentially revealing a vibrant representation of the historical context. This could include a visual reference to a steam engine, a classic warship silhouette, or the blue uniforms of the Union Navy, symbolizing the vital role of naval engineers like H.P. Gregory in the Civil War.

The number "2" subtly integrated within the USN designation, subtly indicates his service record. This intricate detail subtly enhances the representation of Gregory's rank and history. This thoughtful design element adds depth and personalization to the piece, inviting the viewer to consider the history and appreciate the legacy of a U.S. Navy engineer during a pivotal moment in American history.

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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.