This King 3B Silversonic 100th Anniversary Edition trombone was produced in the 1990s to celebrate the long legacy of King musical instruments. It features a stunning 8" sterling silver bell section paired with a .508 bore nickel silver handslide, creating a bright, focused tone with superior projection. Compared to the earlier 1950s–60s Silversonic models, this horn plays more open and agile—perfect for jazz, lead, or commercial players who want clarity without added resistance.
Unlike vintage models with gold-washed bell interiors, this commemorative version showcases a raw sterling silver bell with no inner gold plate, which was standard for the time. The bell remains unlacquered, allowing the sterling alloy to develop a warm patina while retaining the signature shimmer and overtones that Silversonics are known for.
The handslide is remarkably straight, with clean alignment and smooth action. Lacquer wear is visible around hand contact areas and the neckpipe—normal for a horn of this era—but there are no dents, dings, or structural concerns. We completed full shop service, including chemical bath and final play test. No additional maintenance is required.
It comes with the original King 100th Anniversary coffin-style case, complete with working combination lock and factory tag still attached. These anniversary 3Bs are no longer in production and are growing in desirability due to their blend of modern ergonomics and vintage-inspired sound. New sterling silver bell King trombones (now branded as the 3BS Legend) sell for over $4700 and do not offer the same anniversary packaging or feel.
This piece has now been archived as part of The Brass Exchange's sold collection of historically significant jazz and lead trombones.
What makes a Silversonic trombone different from a standard brass model?
Silversonics use a sterling silver bell instead of traditional yellow or gold brass. This metal choice delivers enhanced overtones, improved projection, and a slightly more focused core—ideal for lead playing in jazz, big band, or commercial settings.
Was this King 3B Silversonic handmade in the USA?
Yes. The 100th Anniversary Edition models from the 1990s were made in the USA and reflected King’s enduring commitment to quality craftsmanship—before production shifted in later decades.
How does the 1990s Anniversary model compare to 1950s and 60s Silversonics?
The 1990s version plays with less resistance and a more open feel. Earlier Silversonics had thicker bell walls and a darker tone. This model balances modern playability with the vintage King sound.
Why are sterling silver bell upgrades so expensive today?
Factory upcharges for sterling bells now exceed $2,000, even from custom makers like Shires. That’s partly due to silver cost, but also due to the difficulty in forming and annealing sterling material properly for resonance and response.
✅ Archive Note:
This trombone has been sold and is now part of our Archive of Sold Instruments. It remains listed here as a reference for players, collectors, and historians researching King’s legacy.
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