Eb Alto
Manufacturer: Hohner Musikinstrumente
Model: Unmarked, but it is a President in features
Serial: 2502
Phase 2 Horn
Finish: Silver plate of some kind, and likely had a gold plated inner bell originally
Source: kurt-01 on eBay.de
This Hohner has rolled tone holes; as well as the G# and C/D trill keys.
If you want to change how many album pictures per page, use CTRL+ and CTRL- (Command + and Command - if you have a Mac). 80% looks great on my 4K monitor.