This is a Jupiter 532L in excellent condition. There were a couple of dings in the bell that have been taken out, otherwise in excellent condition!

From Jupiter:
 
When you're ready for a larger bore instrument, you'll get the most value out of the Jupiter .525" bore instruments. Includes a nickel-silver outer hand slide for years of service.
 
The Jupiter 532L Deluxe Series Trombone is the perfect choice for the player looking for a larger bore instrument. The 532L Series features a .525"medium-large bore for a rich, full tone and a quick response from the nickel silver outer hand slide. The 532L also features an 8.1" yellow brass bell designed for excellent projection. The Jupiter 532L Deluxe Series Trombone includes a case and mouthpiece and is availalble in lacquer finish.Key of Bb. Features a .525" bore, 8.1" bell, chromed inner slides, nickel silver outer slides, lacquer finish. Includes wood frame case and slide oil.

Key of Bb. Features a .525" bore, 8.1" bell, chromed inner slides, nickel silver outer slides, lacquer finish. 
 
Comes with case.
 
Asking $475 + Shipping