While the seller thinks the horn is early 1900s and was made by Adolphe Edouard sax, I think the keyguards, G#/C#/B/Bb cluster, atypical engraving, and two "serial numbers" lean more toward "Selmer-made." In any case, it's a really pretty horn.
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.