My main interest and reason for asking is the details of how the horn is attached to the strap. I see sometimes it is directly to the strapping, and other times it uses a separate lace. Sometimes the lace is attached to a metal ring that is attached to the strap or sometimes it is directly attached to the strapping via a sewn loop. Other times the main strap is just split into two smaller straps or a buttonhole slit is made that ties or attaches to the horn. Are all of these options known to have been used? Of course the way it is attached depends on the horn styling, staples, knobs etc.