http://www.siegfriedscall.com/SiegfriedsCall/OH164.html Single B-flat horn with A-stopping valve. Info@SiegfriedsCall.com http://www.siegfriedscall.com/SiegfriedsCall/OH164.html#0 83a0d7f6-96e6-4f40-8745-07b85e6c8bcd http://www.siegfriedscall.com/SiegfriedsCall/OH164_files/Media/164gbig.jpg?derivative=thumb http://www.siegfriedscall.com/SiegfriedsCall/OH164_files/Media/164gbig.jpg?derivative=micro <div style="padding: 0px; " class="image_cluster_layout_style_default_External_0_0"><div class="image_cluster_layout_style_default"><p style="padding-bottom: 0pt; padding-top: 0pt; " class="paragraph_style">Dieter Otto Mod. 164</p></div></div>