🔎 Historical Perspective
This King 3BF Silversonic Trombone, serial number 666291, represents a later-era Model 2103 example with an interesting hybrid configuration. The sterling silver bell dates from a 1990s production 2103, while the valve wrap and handslide appear to be from an earlier 1970s build period. Configurations like this are sometimes encountered on working professional instruments where components were matched for feel and performance.
The instrument featured the classic 8" sterling silver bell paired with a .508 bore nickel silver slide for small-shank mouthpiece. The slide was outstanding—super straight tubes with excellent action—and the horn played exactly as expected. Structurally it showed no dents, dings, or prior trauma, making it a very clean example of a working Silversonic.
From a pro player’s perspective, sterling silver bells require more energy to fully resonate at 100%, but once mastered the tonal energy is enormous and cannot be rivaled by a traditional brass trombone. That clarity and projection are part of why the King 3BF Silversonic became a trusted choice for jazz, commercial, and pit orchestra players.
It included a very clean coffin-style case. Examples like this help document the many variations of King Silversonic production and remain valuable references for players researching condition, compatibility, and historical value.
The Brass Exchange has been serving brass players and collectors since 2010, preserving historically important instruments and helping musicians evaluate, trade, and consign vintage brass.
📷 Older Photography Note – Archive Image Context
These photos on this listing come from an earlier period of our shop photography. They still accurately document the instrument and its condition, but may not reflect our current studio style. They are preserved as part of the historical record of this King 3BF Silversonic.
✅ Common Questions
What is a King 3BF Silversonic trombone?
A small-bore tenor trombone with F-attachment and sterling silver bell, widely used in jazz and commercial settings.
Are hybrid King Silversonic builds common?
Occasionally. Professional instruments are sometimes assembled from compatible King parts to achieve preferred feel or response.
How much is a King 3BF Silversonic worth?
Value depends on condition, originality, and service history. Archive listings like this help establish realistic market expectations.
🔧 Availability & Archive Status
This trombone has been sold and is now part of our Archive of Sold instruments. Archive listings remain online to help collectors and musicians research instrument history, specifications, and values.
📌 Archive Reference & Next Steps
Have a King Silversonic sitting in storage, downsizing a collection, or trying to decide the best way to sell? We help players and families determine value, explore trade-ins, and safely consign vintage brass instruments every week.
👉 Contact us here: https://www.thebrass-exchange.com/contact-us
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This King 3BF Silversonic Model 2103 trombone is now shown as a historical reference for collectors and players. 📌
