E.P. Copper Silver-Plated Miniature Cup or Christening Mug

Hollowware (Miniature Cup / Child's Mug) · E.P. Copper (an Electroplate brand). The logo featuring a bird/swan inside a wreath is characteristic of various mid-20th century silver merchants, often associated with Canadian or British Commonwealth silverplate companies like Primrose Silver Co. or similar mass-market manufacturers.

Pattern: Plain Modernist / Utility style. This is a generic unpatterned line focused on durability and affordability rather than a named artist collection.

E.P. Copper Silver-Plated Miniature Cup or Christening Mug

Type

Hollowware (Miniature Cup / Child's Mug)

Maker

E.P. Copper (an Electroplate brand). The logo featuring a bird/swan inside a wreath is characteristic of various mid-20th century silver merchants, often associated with Canadian or British Commonwealth silverplate companies like Primrose Silver Co. or similar mass-market manufacturers.

Material

Silver Plate over Copper (E.P. Copper). The base metal is copper, which has been electroplated with a thin layer of silver. Notable for the 'Lead Mt's' marking, indicating lead-mounts (handles or rims) which was common in mid-century plated ware.

Dimensions

Estimated height: 2-2.5 inches; Diameter: 2 inches. Weighs approximately 100-150 grams. This appears to be a miniature or 'toy' size cup, or a small child's christening mug.

Description

This is a utilitarian silver-plated over copper miniature cup. It represents the mid-20th-century trend of 'everyday luxury' where silver-plated items were made accessible to the middle class. The piece is simple, sturdy, and focused on the warmth of the silver finish over a reliable copper core.

Key Features

The 'E.P. Copper' and 'Lead Mts' stamps are the primary identifiers. The presence of the bird-in-wreath logo suggests a specific manufacturer like Primrose Silver Service of Toronto, which frequently utilized this marking system.

Material & Composition

Silver Plate over Copper (E.P. Copper). The base metal is copper, which has been electroplated with a thin layer of silver. Notable for the 'Lead Mt's' marking, indicating lead-mounts (handles or rims) which was common in mid-century plated ware.

Finish & Decoration

Polished silver finish, currently exhibiting heavy atmospheric tarnish and oxidation. The design is minimalist and utilitarian with no engraving, chasing, or repoussé work. The style is late Art Deco to Mid-Century Functionalism.

Hallmarks & Stamps

Stamped on base: A bird/swan logo in a wreath; 'E.P. COPPER'; 'LEAD MTS'; and the number '900' (likely a catalog or design number rather than silver purity). The 'E.P. Copper' stamp is the definitive indicator of electroplated copper.

Construction Details

Machine-made and spun. The body is formed by metal spinning or die-pressing. The handle is a separate casting (the 'Lead Mount') that has been soldered to the main body.

Functional Features

Single looped handle for gripping. The interior shows circular wear consistent with liquid containment or abrasive cleaning. The 'Lead Mt's' indicates that the decorative or structural attachments were made from a lead-based alloy for ease of casting before plating.

Handle & Grip Details

Simple C-scroll handle. It is attached via solder points. Given the 'Lead Mts' stamp, the handle material is a base metal alloy (lead/antimony) which was then plated to match the copper body.

Craftsmanship Details

Standard industrial craftsmanship. The soldering is clean, and the spinning is symmetrical, but it lacks the hand-finishing or fine engraving found in premium silver hollowware.

Authentication Indicators

The stamps are clearly factory-pressed. The presence of 'E.P. Copper' immediately disqualifies it from being solid sterling silver. The weight and 'feel' of silverplate over copper are distinct from solid precious metals.

Origin & Manufacturing

Likely Canada or USA. Many firms like Primrose or Benedict used these specific 'E.P. Copper' stamps. The manufacturing is industrial/factory-scale rather than artisan-workshop.

Era & Period

Mid-Century (c. 1940-1960). The stamping style and 'LEAD MTS' terminology are hallmarks of mass-produced silverplate from this era, specifically from North American or British manufacturers.

Age Estimate

Circa 1950s. The typography of the stamps and the logo style align with post-WWII household silverplate production.

Cultural Significance

Represents the democratization of silver in the mid-20th century. Such pieces were common gifts for children (christenings) or used as promotional items and inexpensive trophies.

Condition Notes

Good structural condition but Poor surface condition. There is heavy tarnish (sulfide layer) and visible 'copper bleeding' where the silver plating has worn thin on the rim and interior, revealing the reddish copper underneath.

Value Estimate

$5.00 - $15.00 USD. As a plated piece with significant wear and 'bleeding,' it holds primarily sentimental or decorative value rather than investment or scrap value.

Care & Maintenance

Clean with a mild silver cream (e.g., Wright's). Do not use abrasive 'dip' cleaners as the plating is likely very thin. Avoid hard scrubbing on the 'bleeding' areas to prevent further loss of the silver layer.

Similar Pieces

Often confused with pewter or sterling baby cups. Similar items by Sheffield or Gorham 'EP' lines exist, but those by Gorham usually carry higher brand prestige.

Interesting Facts

The 'Lead Mts' stamp was a point of pride for manufacturers to show that the ornate parts were cast rather than stamped, even though lead-based alloys are now less desirable due to health safety standards in modern food-ware.

Identified on 6/19/2026
E.P. Copper Silver-Plated Miniature Cup or Christening Mug | Silver Identifier