These appear to be stencils of the B&S Series 1000 intermediate horns.
Eb Alto 0043XX
Bladsy gegenereer in 0.046 s (23 SQL navrae in 0.008 s) -
Aangedryf deur Piwigo
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.
