A casual vintage slide trumpet that my band director owns. It does not have a case, sits in the instrument storage room, and is a favorite for any of the seniors. :
Thomann SL 5 Soprano Trombone – Thomann UK
JP039 Slide Trumpet Bb Lacquer - Brass Direct
Vintage Getzen Elkhorn Deluxe Slide Trumpet - With Original Case & Mouthpiece
JP039 Slide Trumpet Bb Lacquer - Brass Direct
INST - BRASS - TRUMPET - Classical - SLIDE trumpet (English) c.1795, pitched in F, with crooks to E, E flat, D and C, & orig Stock Photo - Alamy
Chops: Secrets of the Slide Trumpet - JazzTimes
Brass Ark - Museum
Slide trumpet
The Getzen Slide Trumpet! - YouTube
MTP Bb slide trumpet Piccolo Mod. MINI - MTP manufactory - quality for 25 years