Source: Saxophone Depot on eBay.com
Note this one is an SX90R. According to the dealer:
"They only made 100 of the straight keilwerth SX-90 altos and not that many with rolled tone holes!"
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.