International Silver Deep Silver 'Esperanto' Silverplate Dinner Knife
Flatware - Dinner Knife · International Silver Company, an American conglomerate formed in 1898. This piece is from their high-quality 'Deep Silver' silverplate line.
Pattern: Esperanto pattern, introduced in 1966. It was a flagship pattern for the mid-century Mediterranean Revival style. Now discontinued.
Type
Flatware - Dinner Knife
Maker
International Silver Company, an American conglomerate formed in 1898. This piece is from their high-quality 'Deep Silver' silverplate line.
Material
Silverplate (electroplated nickel silver). The handle is plated with a heavy deposit of silver, and the blade is forged stainless steel.
Dimensions
Approximately 9 to 9.25 inches in length. Weight is approximately 80-95 grams.
Description
This Esperanto dinner knife is a prime example of International Silver's mid-century opulence. Featuring a heavily embossed handle with blackened oxidation to create depth, it pairs a classic Spanish-inspired aesthetic with the modern convenience of a stainless steel blade. It represents the pinnacle of premium silverplate from the late 1960s.
Key Features
Deeply recessed oxidation; 'Deep Silver' extra-thick plating; pointed handle tip; Spanish Baroque scroll motif.
Material & Composition
Silverplate (electroplated nickel silver). The handle is plated with a heavy deposit of silver, and the blade is forged stainless steel.
Finish & Decoration
Oxidized (blackened) recesses to highlight the ornate scrollwork. The style is Mediterranean/Spanish Baroque revival with scrolled acanthus leaves and a scalloped edge on the handle.
Hallmarks & Stamps
Typically stamped 'IS' or 'International Silver' and 'Deep Silver' on the handle or the bolster of the blade. The blade may be marked 'Stainless'.
Construction Details
Hollow-handle construction. The silverplated handle and stainless steel blade are joined at the bolster with a high-strength epoxy or solder.
Functional Features
Serration-back blade design for utility; weighted hollow handle for ergonomic balance; corrosion-resistant stainless steel blade.
Handle & Grip Details
Silverplated hollow handle with a tapered, pointed tip. Ornate relief scrolls provide a textured, slip-resistant grip.
Craftsmanship Details
Machine-stamped handle plates soldered together. The quality of the 'Deep Silver' plating is superior to standard electroplate, designed for daily endurance.
Authentication Indicators
Pattern matches 'Esperanto' exactly. Proportions are consistent with American standard dinner knives of the 1960s. The 'Deep Silver' branding was exclusive to International Silver for this specific aesthetic.
Origin & Manufacturing
United States of America; likely manufactured in Meriden, Connecticut, the 'Silver City'.
Era & Period
Mid-Century Modern / Mediterranean Revival (1960s). It reflects the shift towards more adventurous, textured global designs in late 60s Americana.
Age Estimate
Circa 1966-1975 based on the pattern introduction and the popularity of the Deep Silver branding.
Cultural Significance
Reflected the post-war American fascination with 'Old World' European travel and Mediterranean flair, moving away from the stark minimalism of earlier 1950s design.
Condition Notes
Good to Very Good. Significant tarnish/oxidation on the handle (which may be intentional but appears heavy here). Minor surface scratches on the blade. No 'bleeding' of base metal visible in the image.
Value Estimate
Individual replacement value between $8.00 and $15.00 USD depending on the secondary market.
Care & Maintenance
Clean with mild soap and water. Use a high-quality silver cream for the raised surfaces but avoid 'dips' which will strip the intentional black oxidation in the scrolls.
Similar Pieces
1847 Rogers Bros 'Spanish Crown' or Oneida 'Du Maurier'. These offer similar scroll motifs but differ in handle tip shape and weight.
Interesting Facts
The 'Deep Silver' line was marketed as having an extra thick layer of silver and an inlaid block of sterling at the wear points of spoons/forks to prevent 'silver loss'.