Sold
KING

King 4BF 1970’s Ropy Engraving SN 504743. A well-preserved example of the classic King 4BF from the 1970s, kept in original lacquer with all factory parts intact. This instrument shows no signs of major damage or past repairs. The slide is remarkably smooth and “loose” in the best sense – perfectly straight and effortless to play. Few examples from this era remain in such fine condition today.

The horn features the traditional-wrap rotary F-attachment, a .547-bore nickel-silver handslide, and an 8.5″ yellow-brass bell with the distinctive ropy-style King engraving used during this period. Its warm yet projecting tone made it a trusted all-around large-bore tenor for band, orchestra, and small-group work. Many players still regard the 1970’s King 4BF as one of the most versatile professional-grade tenors ever built.

The original King case accompanies the instrument. It shows typical exterior wear from age and travel but remains fully functional and secure for storage or display. Having survived the decades without major alteration, this 4BF represents both a piece of King’s manufacturing history and a practical, ready-to-play example of the model’s enduring design.

This instrument has been sold and is presented here as part of our historical archive for collectors, researchers, and brass-enthusiast visitors. It stands as a reference point for anyone comparing modern production with the build quality of vintage King trombones.


FAQs

What makes the 1970’s King 4BF special?
It combines the traditional-wrap F-attachment with King’s renowned .547-bore slide and an 8.5″ bell, producing a lively yet centered tone that fits many musical settings.

What is “ropy engraving”?
During the 1970’s King used a deeper, more textured bell engraving often described as “ropy.” It’s a distinctive period-correct detail valued by collectors.

Is this 4BF suitable for professional performance?
Many professionals used these models in orchestral, concert-band, and chamber situations. Its classic design and ease of response remain admired today.

Can I find another 4BF like this for sale?
Examples in such original condition have become increasingly scarce. Browse our current trombone listings🔎 to see similar available instruments.

📌 Looking to sell or trade your own vintage 4BF? Start here
📣 Explore more archived King trombones and discover their history