📜 Historical Overview
This Bach 42B-LT Tenor Trombone, serial number 11,XXX, was built during the mid-1970s Corporation Era—a period many players still consider among the finest in Bach’s Elkhart-based production history. The model designation “BLT” identifies a lightweight nickel-silver slide (LT) paired with the classic 8.5" yellow-brass bell.
This particular instrument was left in raw brass, having naturally aged to a soft golden patina over the decades. It has undergone a complete professional service including chemical bath, slide alignment, and detailed mechanical inspection, ensuring smooth, tension-free performance.
The 42BLT design delivers a broad, resonant orchestral tone with added agility thanks to the lighter-weight handslide. It remains an excellent choice for advanced students, college players, or professionals seeking the warmth and color of a vintage Bach with modern playability.
Includes a Gator lightweight case in very good condition. Mouthpiece not included.
✅ Common Questions
What does “Corporation Era” mean on a Bach trombone?
After moving production from Mount Vernon, NY, to Elkhart, IN in the mid-1960s, Bach instruments were stamped “Corporation.” Many musicians value this era for its craftsmanship consistency and balance between the New York tonal tradition and Elkhart durability.
What is the difference between the Bach 42B and 42BLT?
Both share the same 8.5" large-bore design (.547"), but the LT slide uses thinner nickel-silver outer tubes, offering faster response and a more nimble feel—especially useful in symphonic, chamber, or crossover settings.
Why do some players prefer raw-brass bells?
Without lacquer, the brass vibrates freely, producing a more open, immediate sound. Raw brass also develops a natural patina over time, prized by players for both tone and character.
📸 Photography Note:
This page includes images from an earlier period in The Brass Exchange’s history. These photos remain part of our archive to document the instrument’s condition at the time of sale and the early evolution of our visual presentation standards.
📌 Archive Reference — Sold Instrument
This Bach 42BLT Corporation Era tenor trombone has been sold and is now featured here as a historical reference for collectors and players researching vintage Bach models.
If you currently own a Bach 42 or similar model and would like help determining its value—or are considering selling or consigning it—we’re always glad to review instruments for our archive and collector network. ✍️ Contact us here
👉 Explore more vintage Bach trombones in our Archive of Sold Instruments🔎 or visit our Unpublished Used Trombones and Brass Instruments – Early Access List for upcoming arrivals.
















